
Trapped in an endless Roman corridor, you must observe carefully, solve eerie puzzles, and survive horrors in this roguelite puzzle-adventure.
Modeled estimate, not a reported figure. How we estimate →
About
One wrong door, and the Atrium will swallow you whole.
You awaken in an ancient Roman hall that loops forever. The only way out is to identify what doesn’t belong. Statues turning to face you, banners changing colour, footsteps behind you - anything could be the clue. Choose wrong, and you’re cast back to Hall 0. Choose right, and the Atrium lets you progress.
But it's not as easy as just spotting anomalies. Sometimes, the anomaly is obvious - the problem is getting past it.
The halls aren’t empty. Angels of death drift silently between the columns, their presence warping the air. Stranger things lurk beyond - entities you can’t yet name, but will come to fear. Some can be avoided… others demand confrontation.
Spot the anomaly – Each corridor hides something amiss. A banner bleeding new colours. A statue’s eyes that follow you. A torch that burns too cold.
Left or right – Anomaly detected? Take the left door. Nothing wrong? Take the right. But beware: the Atrium has a way of warping your perception.
Puzzles in your path – Sometimes the left door won’t open until you solve a challenge; locate a hidden key, decipher an inscription, or answer a cryptic riddle.
Lurking Terrors – Angels of Death and nightmarish beings haunt the halls, punishing the slightest mistake.
Grow Stronger with Every Run - Your journey is never wasted. Earn diamonds to unlock permanent upgrades. Like Hindsight to review missed anomalies, Foresight to glimpse anomaly odds, or a Radiant Sword to strike down Angels of Death.
Conquer the Final Trial - Hall 10 holds the Atrium’s ultimate guardian. Only the strongest souls will survive what waits there.
Optional Jumpscares - Too scared? Turn them off in settings.
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French*, Italian*, German*, Spanish - Spain*, Japanese*, Korean*, Portuguese - Brazil*, Russian*, Simplified Chinese**languages with full audio support
Engagement
Reviews
Schönes Anomalie-Spiel, sehr schöne Ideen eingebracht. Auch die etwas andere Art von Anomalie in der zweiten Runde ist genial! Sehr zu empfehlen!
Spent hours and hours in Moral Dilemma difference finder. More than 20 hours in Atrium Mortis demo and finally got a full game, puzzle which take all my attention and memory skills 100% deserve 10/10. New mode after finishing first part absolute masterpiece. Developer is freak as me in a good meaning.
This is likely my favorite Exit 8 style game i have seen or played, it was a lot of fun, a bit silly, and i loved the Final Hall challenge, it was a lot of fun for how short of a time it took me to finish it but i am excited to play through again and again to find all the anomalies
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
Hours played at review time, across 37 reviews with recorded playtime.
i honestly really like the details and silly rooms.
I will start by saying this. I am an idiot when it comes to any of these "figure out what is different" games, and it was obvious this would be a tough one for me, since it is detailed in what it can change from room to room and level to level. Don't take my short time playing it to mean it was not good. I loved it, but I quickly realized that I was making the same mistakes again and again. That was ALL on me, as even my chat when I livestreamed it told me I was not good at it. This is by no means the fault of the game, and I really recommend this game for those who love looking at the little details to see what you missed. I honestly had a lot of fun with it in the short time that I played it. It really does feel like exit 8, but with a lot more changes to look for in each level.
Certainly more fun than it looks. I wasn't expecting to enjoy it as much as I did. If you like "Where's Wally?" then you'll like this.
Nice anomaly game with a LOT of anomalies and a TON of achievements to hunt for!
Very fun and replayable! Retains the (optional) horror elements of classic anomaly games like exit 8 without becoming a walking sim or generic.
好玩
great anomaly game with additional challenges and minigames. worth the price if you continue to explore after the initial playthrough.
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Players by region
Where this game's players are, estimated from review languages.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $2.6K | 21 | 95% | $3.99 | |
| — | 0 | — | — | |
| — | 0 | — | — | |
| $23K | 123 | 92% | $9.99 | |
| $9.6K | 48 | 92% | $9.99 | |
| $11.7K | 221 | 76% | $1.59 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $6.2K | 86 | 47% | $2.99 | |
| $6.2K | 97 | 99% | $4.99 | |
| $6.2K | 93 | 49% | $2.99 | |
| $6.2K | 73 | 42% | $4.99 | |
| $6.2K | 207 | 88% | $2.99 | |
| $6.2K | 111 | 89% | $1.99 |