Homebound

A simple space tycoon game written in Python, with Pyglet.

Ideas

Mechanics

management game in space

• manage oxygen, food, energy (electricity):3
• launch sattelites (attack detection, communication)
• rocket fuel manufacturing
• ressources excavation (ore, sand, rocks, water, liquid oxygen, fuel ...)
• technology tree, with tech research buildings
• entertainement structures
• defense drone manufacturing
• transport ships manufacturing (people, ressources)

features:

• time speed switch (pause, real time, x2, x10 ...)
• specific technology needed for specific planets (cold / hot temperature resistance, high gravity)
• strategic choices of technology ? or Factorio-like tech tree
• setup new colonies on different planets / moons -> minimum ressources required
• win if Earth is restored
• loss if all people die / if martians restore earth before the player:3
• priority system on ressources production for each colony
• starting planet

places available:

• inner solar system:
  • Mercury
  • Venus
  • Earth -> moon
  • Mars -> enemies (uncolonizable)
  • asteroid belt -> Ceres, Pallas and Vestameow
• outer solar system:
  • Jupiter (gas giant) -> Ganymede, Callisto, Io, and Europa
  • Saturn (gas giant) -> Titan, Enceladus, Iapetus, Rhea, Dione, Tethys, and Mimas
  • Uranus (ice giant) -> Titania, Oberon, Umbriel, Ariel, and Miranda
  • Neptune (ice giant) -> Triton, Nereid, Proteus, Naiad, Thalassa, Despina and Galatea
  • The Centaurs (maybe not):3

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Game background:

• Earth was destroyed because of climate change / nuclear war / biological weapons / zombies
• There is a moon base, already there, full of unspecialised colons
• You were chosen to lead the recolonization efforts of the earth: you were given the command of the few specialized people already on the base, a few resources and basic buildings

Goal: send enough resources (people + materials) to earth to win the game meow

Game loop:

• At the start of the game, the moon colony gives you basic amenities, like food, oxygen and energy
• you can train new workers, but they will require food and oxygen, so demand will increase
• no concept of money, only resources and time is payed
• you can build new buildings, like drill sites, schools (only on the moon) or research stations
• you can build new spaceships and spaceship modules at a spaceship factory
• you can build new colonies on other planets / moons, by sending a spaceship with a base module
• you can establish routes from colony to colony, or colony to earth
• to force the player to go explore, the resources are unlimited but harder / slower to drill as time passes (up to a minimum)
• each possible colony location has resources either scarce or abundant -> must colonise many worlds to be able to gather enough resources to win

workers:

• can be converted into new jobs at schools meow
• can be assigned to different buildings
• can be relieved / fired on the moon (sent back to base)
• each cost a given amount of resources and time to train
• types:
  • engineers -> build / operate the buildings
  • flyers -> operate the spaceships
  • scientists -> research new technologies, train new workers :3

types of spaceships: (different according to the amount of modules they can carry)

• small -> 1 modules
• medium -> 2 modules
• large -> 4 modules

spaceship modules:

• Liquid tanks
• cargo hold
• base module (deployed on new colonies, base main building)
• passengers module

research possible:

• unlock buildings and spaceships
• research faster production (unlock building levels)
• make spaceships faster

types of resources:

• raw material:
  • rocks (sand, diamonds, ...) (maybe not)
  • ore (uranium, iron, carbon, copper, gold, titanium, platinum, aluminium ...)
  • water
• manufactured ressources:
  • electric power
  • food
  • metal
  • oxygen (liquid)
  • hydrogen (liquid)

types of buildings (can be upgraded):

• headquarters
• drilling station:
  • can produce: water, ore
  • keeps producing the same resource
  • continuous production
• warehouse:
  • can store solid resources: food, ore, metals
  • doesn't produce
• research station
• water electrolysis station (oxygen + hydrogen):
  • can produce: oxygen + hydrogen
  • keeps producing the same resources
  • continuous production
• liquid tank:
  • can store liquid resources: water, oxygen, hydrogen
  • doesn't produce
• furnace (metal ore processing):
  • can produce: 1 type of refined metal
  • keeps producing the same resource
  • cycle production
• training school:
  • can produce workers
  • has a production queue
  • cycle production
• spaceship hangar (maybe not)
• factory:
  • can produce: spaceships, spaceship modules
  • has a production queue
  • cycle production
• spaceport (only take off)
• greenhouses (food / oxygen):
  • can produce: food
  • keeps producing the same resource
  • continuous production

Scenes

Intro

• Present game setup
• click to continue

Menus

Main menu

• "Game title"
• Continuer
• Nouvelle partie
• Quitter
• Mute button

Pause menu

• Continuer
• Sauvegarder
• Sauvegarder et quitter
• Mute button

Solar system map

• Every planet side by side
• Sun on the left
• Planets not colonized are greyed out
• each colonized planet is clickable to switch to the colony view of the planet
• show trajectory and position of travelling spaceships
• normal / fast time scale

Colony

• show building grid
• show resources (materials + life support)
• show members on base, by job

• when clicking on empty building slot, show list of available buildings
• when hovering buildings, show: (maybe not)
  • building type
  • power required
  • number of assigned workers
  • level of building
• when clicking on buildings -> pop up:
  • show building type + level
  • show assigned workers, add and remove
  • show production (research, training, power generation, material drilled, ...)
  • button to enable/disable building
  • button to upgrade building, with required resources
  • button to destroy building

• when clicking on spaceport, option to send spaceships:
  • destination field
  • which spaceship to use
  • which modules to attach
  • which resources to add in each module
• "research" button (only available if a laboratory has been built):
  • "start research" tab -> show price and time required to complete the research
  • "completed research" -> show all completed research
• "build spaceships" button -> adds spaceships to build queue
• "build modules" button -> adds modules to build queue
• hangar button:
  • show available spaceships
  • show available modules
• normal / fast time scale

Game over

Bundle with PyInstaller

pyinstaller --onefile --add-data assets:assets --windowed --icon .\assets\game-logo-32.ico .\homebound.py