Invaded Sanctuary (Jern Jam 2025 Entry)
General Heads Up:
- Camera rotation has been fixed for web by using R for rotation rather than Ctrl or middle-click
- Unit upgrading also seems to not work right in web-build. You're supposed to be able to click an icon, and click the unit you wish to upgrade, but this seems to fail on web build
- Game lacks a tutorial ๐ญ So overall I appreciate if you manage to have some fun with it, the systems are at least there and I feel it's close to something game-like.
Welcome to Invaded Sanctuary!
This is a conceptual attempt at combining a bit of RTS, and bit of colony sim. I implemented a really quick and simple gene inheritance system, so the villagers can build family trees with stat specializations over time as they battle nature.
Your goal was supposed to be growing colony's population by carefully selecting partners within your initial group, fighting off the invasive plants as they threaten to take over the map, and stocking up as many supplies as possible. Unfortunately I didn't take enough time to build up the map, so only a small section near the camp has anything to interact with.
Your win condition is simple: Destroy every invasive plant on the entire map. it is the only way to defeat the invasive species that has overgrown much of the landscape already.
Some notes!! Unfortunately my control scheme is not super web friendly, the middle-click functionality (at least in firefox and zen) is acting a bit unpredictably. The desktop version is the same exact version of the game, but playable on desktop, so I pray that if you do have problems which make the game unplayable in browser, you will consider playing the desktop version ๐
Inputs
| Control/Key | In-Game action |
| W/A/S/D | Move the camera |
| Hold Control OR Middle-Mouse and move mouse | Rotate camera |
| Spacebar | Return camera to map center |
| ~(tilde), Alpha 1, 2, 3 | Pause toggle, 1x, 2x, 3x speed |
| Scroll Wheel | Zoom camera in/out (if stuck, hover over event log, then move mouse out, and try again. sometimes things get locked u |
| Click & Drag on ground | Select units with box-selection |
| Left-click units or buildings | Select singular units |
| Holding Left-Shift | Additive select (if highlighting new objects while holding) Speed up camera movement while holding Multi-upgrade units (if you have the supplies) by shift left-clicking during upgrades |
The characters you can control have 4 stats to keep track of, Energy, Health, Satiation, and Hydration.
As characters perform tasks, like gathering water, berries, meat, tools, weapons, or breaking plants, they lose energy. This energy is then replenished by hydration and satiation. If they have no satiation or hydration left, they will begin to lose health.
They SHOULD try to go to the main tent, take shelter, and restore their stats. After which they will emerge ready to perform again!
HOWEVER, I'm pretty sure there may be a few bugs. Wouldn't you guess it!
- 1) Pretty sure bears and other roaming animals randomly lose their ability to use their brains and path around
- 2) Technically only hunters are supposed to be allowed to fight, but other classes of villagers can as well.
- 3) My control scheme is so bad that if you use control while also moving the camera you will likely inevitably close the browser page from hitting ctrl+w
- 4) Right clicking sometimes doesn't interrupt the current action. Just, kinda, click around on the ground a bit, that should work.
- 5) Sometimes villagers (at least in my testing) get perma-stuck inside the shelter ๐
- 6) It looks like somehow my tooltips actually totally break the unit upgrading so the one core mechanic that actually makes the game work may not even work! It appears to work just fine in the desktop build though, so please, I ask if things don't work on the web build, give the desktop one a try! I'd do the same for you ๐ญ
But HEYYYY ITS A GAME AND IT PLAYS AND I UPLOADED IT AND IT HAS SOUNDS AND MUSIC AND MODELS AND STUFF SO LIKE THATS BETTER THAN EVERY OTHER JAM I'VE DONE SO I CALL IT A WIN! GGWP and best of luck to all participants in the jam!
Download
Install instructions
Simply unzip the archive and run the executable!
Development log
- First Post-Jam Update!Oct 12, 2025
- Jam Postmortem Thoughts!Oct 05, 2025
- My entire jam notes document uploaded!!Sep 30, 2025



Comments
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when i click "population management" and literally anything in that window the game crashes (webgl)