Gravity Game on Marks2Games

Mon, 01 Jan 0001 00:00:00 +0000

Battles

Mon, 01 Jan 0001 00:00:00 +0000

Battles

Battles in Gravity Game are turn-based tactical encounters between two players. Each match represents a single battle, where both sides move their fleets, meet on contested fields, and fight for control.

The system is designed around planning, prediction, and risk management. Success depends not only on fleet composition, but also on positioning, timing, and deciding how much loss you are willing to accept.

Battle structure

Each round consists of two phases:

Fleet movement
Fleet encounters

During the movement phase, both players reposition their fleets on the battlefield. After both players confirm their moves, all encounters are resolved.

A full battle ends when one player captures the enemy base.

Units

Each player controls a fleet of 11 units. There are four unit types in the game, each with its own role.

Cruiser

Firepower: 1
Shields: 10

Cruisers are the basic backbone of a fleet. They provide stable combat value and high durability.

Destroyer

Firepower: 2
Shields: 10
Ability: The total firepower of Destroyers cannot exceed the number of enemy units on the battlefield.

Destroyers are powerful offensive units, but their effectiveness depends on the size of the opposing fleet. Their strength is limited when facing only a small number of enemies.

Ghost

Firepower: 1
Shields: 5
Ability: Each Ghost disables one enemy Destroyer.

A disabled Destroyer is not destroyed, but it does not participate in combat as long as the Ghost that disables it remains alive. Ghosts are therefore a key counter-unit against Destroyer-heavy fleets.

Warper

Firepower: 2
Shields: 1
Ability: Can move to any field during the movement phase.

Warpers are fragile but highly mobile. Their ability to move anywhere makes them useful for surprise attacks, reinforcement, or sudden repositioning.

Movement

Units move across the battlefield one field per turn, with one exception: the Warper can move to any field during the movement phase.

Additional movement rules:

each player has 11 units total
a maximum of 6 units from one player can occupy a single field
this means up to 12 total units may be present on one field at the same time
units on a field controlled by the enemy cannot move to another enemy-controlled field

After both players finish planning their movement, the encounter phase begins.

Fleet encounters

Whenever units from both players are present on the same field, a fleet encounter takes place.

Encounters are resolved in rounds until one side reaches its limit of acceptable losses.

Maximum tolerable losses

Before combat, each player sets a value called maximum tolerable losses.

This represents the number of units that player is willing to lose in the encounter.

The encounter ends when one player reaches this limit. The player who reaches their tolerable losses loses the encounter.

This creates one of the most distinctive features of the battle system: players are not only deciding how to fight, but also how much risk they are willing to take.

Fleet firepower

A fleet’s firepower is the sum of the firepower of all units currently able to fight.

Firepower is applied against the enemy unit type that is most numerous in the enemy fleet.

If multiple unit types are tied for the highest number, the following targeting priority is used:

Cruiser > Destroyer > Ghost > Warper

This means that fleet composition affects not only raw strength, but also which units are likely to take damage first.

Attacks and damage

In each combat round, both fleets deal damage equal to their current firepower.

Damage is subtracted from the shields of the targeted unit type. If a unit loses all of its shields, any remaining damage continues to the next eligible unit according to the targeting priority.

Destroyed units are removed from the encounter and no longer contribute firepower.

Because fleet strength changes as units are destroyed, combat power can shift rapidly during an encounter.

Firepower reduction

As enemy units are destroyed, the total firepower of a fleet may decrease.

This is especially important for Destroyers, because their total firepower cannot exceed the number of enemy units present on the battlefield.

As a result, removing enemy units is not just a matter of survival — it can directly reduce the opponent’s offensive potential.

After the encounter

When an encounter ends:

all surviving units are restored to their maximum shield values
the winner gains control of the field
if the encounter ends in a draw, the field remains under the control of its original owner

This means that each encounter is self-contained in terms of damage, but still has lasting strategic consequences through field control.

Controlled field bonus

A player who controls a field receives a +1 firepower bonus in all future encounters fought on that field.

This makes territorial control important not only for movement and expansion, but also for direct combat effectiveness.

Victory condition

Each player begins on their own base field.

If a player loses an encounter on their base and the opponent takes control of that field, the game is over.

In other words, victory is achieved by breaking through the enemy’s defenses and capturing their base.

Why battles are different

The battle system in Gravity Game is not only about raw numbers. It is built around several interacting decisions:

how to compose your fleet
where to move and when
which fields to defend or abandon
how many losses you are willing to tolerate
when to push forward and when to retreat

This creates battles where prediction, positioning, and risk management matter as much as direct force.

To understand how battles fit into the wider game, continue with the other parts of the guide:

Districts

Mon, 01 Jan 0001 00:00:00 +0000

Districts

Districts are the core building blocks of each planet. They determine what the planet can extract, produce, research, transport, and build.

Some districts are fixed, some are optional, and several can switch between multiple production modes. Changing a district’s mode costs Infrastructure and causes that district to produce nothing during the current turn.

Capitol

Every planet has exactly one Capitol. It cannot be built or destroyed.

The Capitol:

increases the capacity of biomass, organic sediments, metals, and rocket materials by 100
produces 10 Infrastructure per turn
converts Infrastructure + Biomass into Progress

The Capitol is also central to planetary growth, because Progress is what unlocks additional district slots.

Wilderness

An Wilderness increases biomass capacity by 100.

At first glance it may seem inactive, but wilderness also matter indirectly because several synergies depend on neighboring wilderness.

Prospectors

Prospectors expand the storage capacity of extracted metals and organic sediments by 100.

They have two modes:

Mode 1: mine 20 Metals
Mode 2: mine 10 Organic Sediments

Mode 2 is locked behind research.

Industrials

Industrials increase Rocket Materials storage capacity by 100.

They have three modes:

Mode 1: convert 50 Metals into 50 Infrastructure
Mode 2: convert 20 Metals + 20 Organic Sediments into 10 Rocket Materials
Mode 3: convert 20 Organic Sediments into 10 Metals

Modes 2 and 3 are locked behind research.

Urban center

Urban Centers have two modes:

Mode 1: convert 10 Biomass into 10 Research
Mode 2: produce 10 Influence

Mode 2 is unlocked by research. This makes Urban Centers the key district for either technological growth or political/military support.

Expedition platform

Each planet can have at most one Expedition Platform.

This district is used for:

transport between planets
producing Warship Materials
producing Expeditions

Transport costs organic sediments. An Expedition Platform can send 10X of any resource to another planet for X organic sediments, and can also bring 10X back if the destination planet also has an Expedition Platform. Without one on the target world, resources can only be delivered there, not returned.

The same district can also perform one of two production actions:

convert 10 Rocket Materials into 10 Warship Materials
convert 10 Rocket Materials into 10 Expeditions

At 100 Warship Materials, a planet can construct one ship. At sufficient empire-wide expeditions points, the empire gains a new planet.

District mode changes

Industrials, Prospectors, and Urban Centers can only operate in one mode at a time.

Changing a district mode:

costs 10 Infrastructure
causes the district to produce nothing during that turn
applies the new mode starting next turn

District synergies

The technology tree also introduces several district synergies:

Prospector synergy: bonus extraction from neighboring Empty Districts
Industrial synergy: bonus production from neighboring Prospectors
Expedition Platform synergy: bonus expedition and warship production from neighboring Industrials
Urban Center synergy: bonus Research and Influence from neighboring Empty Districts
Diversity: district production scales with the number of other district types present, excluding Capitol

These upgrades suggest that district placement is not only about raw production, but also about adjacency and composition.

Planets

Mon, 01 Jan 0001 00:00:00 +0000

Planets

In Gravity Game, every empire begins with a single home planet. Over time, the player expands to additional worlds and develops them into a larger planetary network.

Planets are not all identical. They differ in size, available district capacity, and starting conditions, which means that expansion is not just about owning more planets, but also about deciding how to use them effectively.

Planet types

There are three planet sizes:

Small

8 districts
3000 planetary metals reserves
50% higher biomass capacity

Medium

12 districts
1000 planetary metals reserves

Large

20 districts
500 planetary metals reserves

The player starts on a Small planet. The starting planet begins with:

a Capitol
one Industrial district
two empty districts
100 metals in storage

Newly acquired planets start with:

a Capitol
three empty districts
no stored resources

Planet level and growth

Each planet begins at level 4. A planet’s level corresponds to the number of unlocked districts.

New districts are unlocked through Progress. When enough Progress is accumulated, the planet levels up and gains one additional district slot. The threshold is based on the previous planet level.

This means planets do not start fully developed. Instead, they grow over time as the empire invests in them.

Maintenance

Once a planet reaches level 9, it begins to require maintenance.

At that point, maintaining the planet costs:

5 × (level - 8) × (infrastructure + biomass + influence)

A planet cannot continue leveling once all of its districts are unlocked.

What planets are for

At a small scale, planets are meant to be developed more broadly and self-sufficiently.

As your empire grows, planets become more specialized. Instead of every planet doing everything, different worlds can focus on different roles, such as:

extraction
industry
research
transport and expansion

This shifts the game from simple local management toward building a connected interplanetary economy.

Production

Mon, 01 Jan 0001 00:00:00 +0000

Production

Production in Gravity Game is not only about what a planet can make, but also about what the player chooses to prioritize.

The empire rules define several player actions that let you configure how a planet uses its districts and resources. In practice, this means production is a management layer where you decide whether a planet should focus on growth, infrastructure, rocket materials, research, expansion, or war preparation.

Progress production

Progress is configured in the Capitol.

By setting Progress production, you decide how much of the planet’s Infrastructure and Biomass will be converted into Progress. Progress drives planetary growth and district unlocking, but larger planets also consume it for maintenance. The default value is 0.

Infrastructure production

Infrastructure is configured in Industrials and has three global production settings for the planet:

Nothing

Industrials in Infrastructure mode produce nothing. Only the Capitol provides Infrastructure.

Usage

Industrials produce only the amount of Infrastructure needed for:

planetary maintenance
the configured Progress target
district mode changes
district construction

This calculation includes Capitol production, but does not include Development output.

Maximum

Industrials produce as much Infrastructure as possible.

The default setting is Maximum.

Rocket Materials production

Rocket Materials are also configured in Industrials and have three settings:

Nothing

Industrials in Rocket Materials mode produce nothing.

Usage

Industrials produce only the amount of Rocket Materials needed for the configured Warship Materials and Expeditions targets.

Maximum

Industrials produce as much Rocket Material as possible.

The default setting is Maximum.

Research production

Research is configured in Urban Centers.

It is added to the empire-wide research pool rather than stored only on the current planet. The default value is 0.

Warship Materials production

Warship Materials are configured in the Expedition Platform.

The default value is 0. Once enough points are accumulated, a planet can produce a warship. The rules specify that each planet can manage one ship, Warper can exist on only one planet, and the other ship classes can be built up to a total of 10. Built ships also consume Influence for maintenance.

Expeditions production

Expeditions are also configured in the Expedition Platform.

Expedition points are added to the empire-wide bank. The default value is 0. Once the empire reaches the required threshold, it gains a new planet. The cost scales with the number of planets already owned.

Building districts

On a Wilderness, the player can build any district except Capitol.

Construction starts immediately and consumes available Infrastructure automatically. Once the construction project reaches 50 Infrastructure, the new district is complete.

Destroying districts

Any district except Capitol can be destroyed.

Destroying a district gives the player 50 Metals, and on the next turn the slot becomes a Wilderness.

Transport

Transport requires:

the Transport technology
an Expedition Platform

It allows resources to be moved between planets. Transport consumes Organic Sediments, and the return leg requires an Expedition Platform on the target planet as well.

Technology and production growth

Production becomes more flexible over time through research.

Key technologies unlock:

Organic Sediment mining
Rocket Materials production
Metals-from-sediments conversion
Expedition Platforms
Transport
Influence generation
Trade
ship production
district synergies
repeatable empire-wide upgrades like Cybernetics, Terraform, Diversity, and Gravity Manipulation

The technology diagram on the last page of the rules also makes clear that production systems are layered: early research opens new basic modes, while later research strengthens efficiency, synergy, and long-term expansion.

Resources

Mon, 01 Jan 0001 00:00:00 +0000

Resources

The economy of Gravity Game is built around a network of connected resources. Some are stored locally on a planet, some are global across the empire, and some are virtual outputs that must be used immediately.

The empire rules divide resources into several categories:

stored resources with limited capacity
temporary resources that cannot be stored
resources with unlimited accumulation toward milestones
special-purpose resources with unique rules

The resource flow diagram in the rules also shows that the system is intentionally interconnected: biomass supports research and progress, metals and organic sediments feed industry, and rocket materials feed both expansion and warship construction.

Biomass

Natural planetary resource

Biomass exists naturally on a planet and does not need to be mined. It can be consumed directly.

Its growth per turn is: capacity / 10 - organic sediments growth

Capitol and Wilderness increase biomass capacity. Small planets have 50% higher biomass capacity. Biomass cannot be transported or traded.

Metals

Core industrial material

Each planet has a limited amount of Metals reserves. To use metals, they must first be extracted by Prospectors.

Extracted metals are stored separately from the planet’s natural reserve. Their storage capacity is increased by Prospectors and Capitol. Metals can be transported between planets and sold through Trade.

Organic sediments

Secondary extracted resource

Organic Sediments start at zero on each planet and grow based on biomass.

Their increase per turn is: biomass / 10, rounded down

This same growth value is also used in the biomass calculation. The maximum planetary reserve of organic sediments is 1000.

Like metals, organic sediments must be extracted by Prospectors before they can be used. They can be transported, sold, and are also used to pay for transport.

Rocket materials

Expansion and military resource

Rocket Materials are produced in Industrials from metals and organic sediments.

They are stored locally on the planet. Storage capacity is increased by Industrials and Capitol. Rocket materials are used for:

colonization ships
warship components

They can also be transported and sold.

Infrastructure

Temporary construction resource

Infrastructure is a virtual resource representing engineering and construction work.

It is required for:

Progress
Development
building new districts
changing district modes

Infrastructure cannot be stored between turns. Any unused infrastructure is converted into Development at the end of the turn.

Influence

Political and military support resource

Influence is a temporary resource produced by Urban Centers.

It cannot be stored between turns. It is needed for:

planetary progress
warship maintenance

Each warship consumes 10 Influence per turn for upkeep. Unused Influence is converted into Tradepower for the next turn.

Expeditions

Expansion progress

Expeditions are created in an Expedition Platform from Rocket Materials.

They are stored globally in the empire and have no capacity limit. Once enough Expedition points are accumulated, the empire gains a new planet.

Warship materials

Military construction resource

Warship Materials are also created in an Expedition Platform from Rocket Materials.

They are stored locally on the planet, have no capacity limit, and require no upkeep. Once enough are accumulated, they can be spent to create a warship.

Research

Empire-wide technological progress

Research is created in Urban Centers and is transferred into the empire-wide pool.

It has no storage limit and no upkeep cost. It is spent to unlock technologies. The technology tree in the rules shows that research unlocks new district modes, transport, influence generation, trade access, military ship production, synergies, and repeatable empire upgrades.

Progress

Planetary growth

Progress is generated in the Capitol.

It is used in two ways:

larger planets consume it to maintain their level
when enough is accumulated, the planet levels up and unlocks a new empty district

Development

Future long-term system

Development currently has no final role defined in the rules, but it is described as a likely future resource for defensive systems against alien attacks and raiders.

Tradepower

Trade efficiency

Tradepower is generated from unused Influence in the previous turn.

Its role is to reduce taxes on Trade transactions.

Technologies

Mon, 01 Jan 0001 00:00:00 +0000

Technologies

Technology is one of the central long-term progression systems in Gravity Game.

Through research, your empire gradually unlocks new district modes, more advanced logistics, military options, and strategic synergies. At the beginning of the game, planets operate with a relatively limited toolkit. As new technologies are researched, the empire gains access to more specialized and more efficient forms of development.

Research is therefore not only a bonus system — it is one of the main ways your empire becomes more capable over time.

How research works

Research is produced by Urban Centers.

When a planet uses an Urban Center in research mode, it converts Biomass into Research, which is then added to the empire-wide research pool.

Important properties of Research:

it is global across the empire
it has no storage limit
it has no upkeep cost
it is spent to unlock new technologies

This means research is a long-term investment: even if a planet is not strong in direct production or combat, it can still be valuable as a research world.

Why technology matters

Technology determines what your empire is actually capable of doing.

Without research, your planets remain limited to basic production and development. With research, the game gradually opens up into a much richer system of:

extraction choices
industrial conversion chains
logistics
expansion
military preparation
efficiency bonuses
empire-wide scaling

In practical terms, technology is what transforms your empire from a small colony into a true interplanetary civilization.

Early technologies

The early part of the tech tree expands the core economy and district functionality.

These technologies unlock the basic tools needed for a more developed empire, such as:

Organic Sediments

Allows Prospectors to switch into Organic Sediment extraction mode. This is important because Organic Sediments are used not only in production, but also in transport and industrial conversion.

Rocket Materials

Allows Industrials to produce Rocket Materials. This is a major progression step because Rocket Materials are required for both expansion and military preparation.

Influence

Allows Urban Centers to produce Influence instead of only Research. Influence becomes important later for warship maintenance and broader strategic support.

Expansion and logistics technologies

Once the empire becomes more advanced, the tech tree opens systems that allow planets to work together instead of remaining isolated.

Expedition Platform

Unlocks the Expedition Platform district. This is one of the most important technologies in the game, because it enables:

interplanetary transport
production of Warship Materials
production of Expeditions

Transport

Allows resources to be moved between planets through Expedition Platforms. This is where the game begins shifting from local planetary optimization toward a true multi-planet economy.

Trade

Unlocks the ability to trade resources. Tradepower, generated from unused Influence, can reduce taxes on these transactions.

Together, these technologies form the logistical backbone of a larger empire.

Military technologies

As your empire develops, research also opens the path toward warship production and military power.

Cruiser

Unlocks the ability to build the Cruiser class.

Destroyer

Unlocks the Destroyer class.

Ghost

Unlocks the Ghost class.

Warper

Unlocks the Warper class.

These technologies connect the empire layer with the battle layer. Research therefore does not only improve economy — it also determines which tactical options are available in combat.

Efficiency and synergy technologies

The tech tree also contains technologies that do not simply unlock new mechanics, but improve how existing districts work together.

These upgrades suggest that the game is designed around interaction between systems, not just isolated production numbers.

Prospector Synergy

Improves Prospector performance based on neighboring Wilderness.

Industrial Synergy

Improves Industrial output based on neighboring Prospectors.

Expedition Platform Synergy

Improves Expedition and Warship Materials output based on neighboring Industrials.

Urban Center Synergy

Improves Research and Influence production based on neighboring Wilderness.

Diversity

Improves district production depending on the number of different district types on the planet. Capitol is excluded from this count.

These technologies make planetary layout and specialization more meaningful over time.

Repeatable empire upgrades

The technology tree also contains several repeatable or empire-wide improvement paths.

These appear to be designed as long-term scaling systems that strengthen the empire beyond simple district unlocks.

Examples include:

Cybernetics

A repeatable empire-wide upgrade path.

Terraform

A repeatable empire-wide upgrade path.

Gravity Manipulation

A repeatable empire-wide upgrade path.

While the rules document does not yet fully explain the exact long-term impact of each one in player-facing detail, they clearly indicate that research is intended to remain relevant even in later stages of the game.

Strategic role of research

A strong empire is not only built by extracting more resources, but by unlocking better ways to use them.

Research affects your empire in at least four major ways:

it unlocks new production options
it enables interplanetary logistics
it allows military preparation and warship creation
it improves long-term efficiency through synergies and scaling upgrades

Because of this, research is one of the clearest ways to shape the identity of your empire.

Some empires may prioritize early expansion and logistics. Others may focus on military readiness, while others may specialize in efficient long-term growth.

Technology as progression

The technology system also helps define the pacing of the game.

At first, your empire operates with a limited set of simple decisions. Over time, more and more systems become available. This means the game does not begin with its full complexity exposed all at once. Instead, complexity grows together with the player’s empire.

That progression is important: it allows the empire layer of Gravity Game to feel like a real technological civilization evolving over time, rather than a static optimization puzzle.

Gravity Game on Marks2Games

Battles

Battles

Battle structure

Units

Cruiser

Destroyer

Ghost

Warper

Movement

Fleet encounters

Maximum tolerable losses

Fleet firepower

Attacks and damage

Firepower reduction

After the encounter

Controlled field bonus

Victory condition

Why battles are different

Related sections

Districts

Districts

Capitol

Wilderness

Prospectors

Industrials

Urban center

Expedition platform

District mode changes

District synergies

Related sections

Planets

Planets

Planet types

Small

Medium

Large

Planet level and growth

Maintenance

What planets are for

Related sections

Production

Production

Progress production

Infrastructure production

Nothing

Usage

Maximum

Rocket Materials production

Nothing

Usage

Maximum

Research production

Warship Materials production

Expeditions production

Building districts

Destroying districts

Transport

Technology and production growth

Related sections

Resources

Resources

Biomass

Metals

Organic sediments

Rocket materials

Infrastructure

Influence

Expeditions

Warship materials

Research

Progress

Development

Tradepower

Related sections

Technologies

Technologies

How research works

Why technology matters

Early technologies