
One Rotten Oath
A downloadable game for Windows, macOS, and Linux
One Rotten Oath is a story-driven FMV+FPS hybrid with thriller elements. Created by the director of A Trip to Yugoslavia.
It's been years since humanity enjoyed its last normal day. Everything lost its meaning, when a mysterious chemical compound leaked from one of the nearby laboratories on the edge of town. Today this event is known as, The Leak.
Chaos consumed the streets and crept into the lives of everyone. Over time, the people who had been exposed to chemicals for too long turned into monsters. Fast, ruthless creatures, driven only by instinct. Those who could, have long since fled. The lucky ones hid in bunkers, some built by themselves and others hidden deep in archival plans of the city. The unlucky ones are slowly dying, or worse.
The game puts you in the shoes of the survivor, whose job is to protect the other people who are still trying to lead a normal life in a bunker. A normal night watch turns deadly, when the only working generator malfunctions and turns off in random intervals for 60 seconds.
Data recovery in progress…
Features (Demo version):
- 3D FPS time-based defense game with First Person Tank Controls.
- FMV cutscenes with visual novel elements.
- Various enemy types e.g masked mutants or mutated football players.
- Use the rifle and revolver to defeat the threat.
- Defeat enemies and defend barricades in a small forest area.
- Utilize trapdoors and kicking to keep enemies at bay.
- Use the sound cues and sensors to pinpoint the enemy’s location.
- Original soundtrack composed by Olga Lewińska.
IMPORTANT INFO:
- Everything you see in this demo is still work-in-progress.
- The game uses checkpoints at the start of the level, but your progress will be reset after you close the game.
- Linux and Mac builds are experimental. I can't guarantee that they will work.
- Demo should take you about 20 minutes to complete.
- If you're planning on using controller, please plug it in before clicking on the executable.
Controls | Description |
WASD / LS / D-Pad | Move and look around |
Left Mouse Button / RT (in combat) | Shoot |
Right Mouse Button / LT (in combat) | Aim down sights (rifle only) |
R / X (in combat) | Reload |
Space / Y | Skip cutscenes / interludes |
Left Mouse Button / A (during visual novel sequences) | Advance dialogue |
Right Mouse Button / B (during visual novel sequences) | Skip typing animation |
Q / LB (in combat) | Quick turn |
E / RB (in combat) | Kick (free roam segments) / use trapdoors (barricade segments) |
ESC / Start | Pause menu (time-based stages only) |
F11 | Disable/Enable fullscreen (can also be toggled in settings) |
Updated | 7 days ago |
Status | In development |
Platforms | Windows, macOS, Linux |
Rating | Rated 4.7 out of 5 stars (3 total ratings) |
Author | Piotr Bunkowski |
Genre | Action, Adventure, Visual Novel |
Made with | GDevelop |
Tags | Experimental, First-Person, FMV, FPS, Narrative, No AI, Singleplayer, Thriller |
Average session | About a half-hour |
Inputs | Keyboard, Mouse, Xbox controller |
Download
Click download now to get access to the following files:
Development log
- Demo v1.0.0 released!7 days ago
- Devlog #4 - Kicking implementation30 days ago
- Public Preview update v1.2.1 - Visual subtleties42 days ago
- Public Preview update v1.2.0 - Xbox controller support59 days ago
- Devlog #3 - Working on new types of mutants72 days ago
- Public Preview update v1.1.0 - ADS system, more precise hitboxes and balance cha...87 days ago
- Public Preview update v1.0.1 - Small QoL improvements and bugfixes91 days ago
- Devlog #2 - Implementing actors to the gameMar 02, 2025
Comments
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I always support enthusiasts and indie games like yours. I enjoyed it, keep up the good work!
Hey!
Thanks a lot. Hopefully, you'll like the full game even more. I'll give it my best! :D
Just played tonight check it out!
Thanks again for playing! I left you a comment on your video!
Yes sir. You are welcome and I saw, thank you! Good luck with the game
Hi! The game looks really interesting, love the art style. Will have to give this one a go this weekend! Let me know if you want to collab, I could do some sound effects for you if you need any.
Hey!
I'm glad you love the art style! Thanks a lot!
Be sure to let me know how's the game for you. Feedback is always useful :D
As for collaboration on sound effects, so far I think we have everything we need for the project. Keep you channels open though! I might have something for you in the future. Thanks for being around and open for indies!
Alrighty! I'll drop a comment once I've played it!
Sick game, deftly a breath of fresh air in the horror indie space, I love how its not afraid to handle the struggles of being a game dev and how the game changes and glitches, I thought the cut scene was part of the game's lore for a second but it being in the point of view of the programmer was defiantly a nice twist, the use of real life people as enemies gave it unique charm it made the game feel less scary but still tense at times, if the game makers keep up this vibe and 4th wall brake I can see it becoming an amazing story driven game !!
Hey! Thanks for all the kind words! <3
Glad you liked it. Reading these types of comments is always inspiring!
This was such an intense and thrilling experience! I’m amazed at how well it runs on my low-end laptop! Definitely looking forward to future updates. Keep up the amazing work!
Thanks again for playing!
Zombies looks like real people)
Hey there!
Thanks for playing. I left a comment on your video. Glad you enjoyed it!