Level 13 is an text-based incremental science fiction browser adventure where the player must survive in a dark, decayed City, (re-)discover old and new technologies, and rebuild a civilization that has collapsed.
The game is in development. You can play latest (semi-) stable version here.
Level 13 is a personal side project but has also received some fixes from the community along the way. If you are interested in contributing, read the contributing guidelines first.
If you need help or want to chat about the game, check out the discussions page, the subreddit, or the discord server instead.
- Survival and exploration
- Base-building and resource-management
- Randomly generated maps
- Items, equipment and environmental hazards
- Technologies that slowly unlock new aspects of the game
Major features still missing are story and RPG elements. Player progress is currently also limited to certain levels - it is not yet possible to reach the actual ending of the game.
The project uses jQuery, Require.js, and Ash.js and is structured according to an entity system framework into entities, components and systems. The playable version lives on the gh-pages branch whereas master may contain untested and unbalanced features.
All game data is stored in various Components that are attached to entities such as the player or a sector. Entities are simply containers for Components. The EntityCreator gives a good overview of what kind of entities have what kind of components.
Various independent Systems use and change data on Components and make stuff happen in the game. They generate resources, update movement options, resolve fights and so on. Each area of the UI is taken care of by its own UI system.
Everything that the player can do in the game - mainly button clicks - are called "player actions". Each action has a name, costs, requirements and so on. The PlayerActionFunctions class contains a function for each action and handles their results. Various helper classes take care of checking requirements, deducting costs, unifying random encounters and so on.
At the start of a new game, a seed value is assigned to the game. The World Creator generates a unique world based on this seed and only the seed needs to be saved between sessions.
(Sample level structure)
The world is generated in roughly the following steps:
- WorldGenerator determines rough structure of the entire world and important points like camp and passage locations
- LevelGenerator adds more details to each level
- StructureGenerator determines the structure of each level, placing sectors and paths according to constraints set in the previous steps
- SectorGenerator populates the sectors with features like resources, item stashes, environmental hazards, movement blockers etc
Two important units for balancing the world are the camp ordinal and the level ordinal. Level 13 where the player always starts has level ordinal 1 and camp ordinal 1.
If you want to report bugs or suggest new features please read the contributing guidelines first.
Level 13 is heavily inspired by A Dark Room. Other great text-based and / or incremental games that the game owes much inspiration to include: