QUICK SNAPSHOT
Developer: Piotr Bukowski
Genre: FMV + Retro FPS Horror
Platform: PC (Steam)
Price: $6.99 as of February 15, 2026
Playtime: 2.4 hours on average
Worth Playing?: Yes, especially if you like retro shooters with meta-horror edges
KEY TAKEAWAYS
- FMV and retro FPS blend surprisingly well: it feels janky on purpose
- The 60 second survival structure keeps tension high: the short bursts keep you engaged
- The meta-story adds weight: the game literally starts falling apart
- It’s rough around the edges: this roughness is part of its identity
FIRST IMPRESSIONS
One Rotten Oath initially caught me off guard. It isn’t polished and doesn’t try to be.
It leans heavy into early 3D energy. Chunky movement, limited visibility, old school hit boxes, harsh weather, and mutants running straight at you.
Then it throws live action footage into the mix. This combo shouldn’t work but somehow… it does.
The game opens in an apocalypse caused by a chemical leak near a laboratory. People exposed for too long changed into mutants. You’re stationed at a bunker in a forest clearing and act as night watch. Each level gives you so many seconds to fend off mutants before you get reprieve.
That is the hook, defend the bunker, survive the blackouts, wait for the army to arrive. Simple on paper but less simple as things get more hectic and resources fail.
THE GAMEPLAY LOOP
This is built around short, intense survival rounds. Each stage gives you 60 seconds of chaos.
When the tech fails, the mutants storm in. Visibility drop and movement can get intentionally stiff at times. The weather doesn’t help.
You’re locked in with a rifle and revolver, plus ammo isn’t a problem, but positioning is.
Sometimes you’re clearing a section of forest. Other times you got to hold up the barricade. Did I mention as new enemies emerge, they get stronger.
The pacing is tight. You either survive the minute or die.
It’s retro FPS DNA all over the place. Think early 3D tech with deliberate harshness and past aesthetics.
Because movement isn’t fluid, every decision you make feels heavier. You can’t just strafe out of everything.
THE ATMOSPHERE
This is where One Rotten Oath separates itself. The FMV segments were shot in Tczew and Gdansk, Poland. So these are real environments and real actors with green screen integration.
Instead of trying to hide the seams, the game lets it show. It feels slightly off, adding to the meta aspect.
Between survival rounds, you watch scenes involving a mysterious survivor and a programmer, who is actively coding next chapters in the game.
Then the tone shifts. The apocalypse story starts to blur into something meta. It gets pretty dark.
Everything starts collapsing, and the game itself feels like it’s deteriorating. That is the tension that works.
SOUND DESIGN
The soundtrack by Olga Lewińska carries more weight than you’d expect.
When you hear your heartbeat as enemies come closer, it gives you visceral apprehension. Not to mention enemy sounds feel closer than you think.
Because the gameplay sections are short bursts, the sound design has to fit fast, which it does.
There’s pressure from the first second of interaction to keep adrenalin going. The reload and gun fire feel’s like it has weight to it.
The FMV scenes also benefit from grounded audio. Some are silent while others have a background ambient sound. It helps sell the reality of survival and the reality of life stressors.
For a project running on GDevelop, an engine known for being accessible, the sound layering is stronger than expected.
WHEN IT CLICKS
About midway through, the game stops appearing like a retro survival shooter horror and starts revealing small inconsistencies.
Transitions feel wrong as you notice some slight glitching. Scenes seem to distort. The programmer character coding becomes more central.
Then it clicks. An apocalypse may not be the only thing unraveling.
The idea that the story is being written, or rewritten, while you’re playing adds tension without adding mechanics. Its psychological instability from two angles.
WHAT DIDN’T WORK
- Visual roughness may turn off some players
- Enemy behavior is straight forward with some variety in speed
- Kicking at the right distance can be a bit hard to nail down
THE ENDING (NO SPOILERS)
I won’t spoil it as it’s better to experience both the in-game and meta story.
However, I will say the game leans into the meta angle harder as it closes.
It pulls at the idea of the bunker situation, as well as the concept of authorship, control, and creator stressors.
The final moments deterioration is intentionally unstable, and it fits.
THE DEV FACTOR
It’s worth mentioning this was developed by Piotr Bunkowski, who made his first game, A Trip to Yugoslavia, back in 2016 while in high school.
This context matters.
One Rotten Oath is a personal build, shot locally. Mutants are played by the dev and his brother. Actors were filmed on green screen and integrated manually. This screams DIY energy.
But it gives this game a personality.
FINAL THOUGHTS
One Rotten Oath had no high budget, but it did something different. FMV + retro FPS + apocalypse survival + meta breakdown.
It’s a weird mix, and it holds together great.
The 60 second survival structure keeps things tense. The meta narrative adds emotional weight while the FMV segments give it identity.
It’s a rough experiment that’s memorable.
If you like indie horror that isn’t afraid to try strange combinations, this is worth your time.
Especially if your into retro aesthetics and psychological instability layered into the gameplay.
WATCH THE FULL PLAYTHROUGH
You can watch my full no-commentary playthrough below and see how the FMV and gameplay add to the stories.
Watch the launch trailer on Steam to see how the FMV and gameplay blend together,
–Gavenox13 out
Nero is a writer and lore researcher known for reviewing games on Steam. With years of experience playing horror games, uncovering hidden narrative patterns across indie and AAA titles, and publishing museum catalogs on ancient objects, he blends commentary with psychological horror theory. When he’s not unraveling storylines, he’s enjoying rock music, drawing, working in analytics or obviously playing video games. Check out his latest post to explore the furtive patterns hidden in game lore.
