Single-player games like The Origin Theory - Episode One
Below are 8 single-player Steam games similar to The Origin Theory - Episode One, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like The Origin Theory - Episode One page.
Ranked picks
- 1
Nathan Morgan: Dilemma
Single-player alternative to The Origin Theory - Episode One — playable solo, no multiplayer required. Shares Adventure with The Origin Theory - Episode One.
Nathan Morgan: Dilemma is a single-player detective game. Detective Nathan Morgan, stationed in the state, is assigned to follow the trail of the mysterious murder at the Bennett mansion. Our goal is to find the killer by making use of the clues.
- 2
aMAZEd
Single-player alternative to The Origin Theory - Episode One — playable solo, no multiplayer required.
aMAZEd is an atmospheric first-person exploration adventure game with elements of action and horror. Lost in a labyrinth, prey to others. Find as many items and clues to escape it and enjoy escalating difficulty in both exploration and action aspects of the game.
- 3
Hare House
Single-player alternative to The Origin Theory - Episode One — playable solo, no multiplayer required. Shares Adventure with The Origin Theory - Episode One.
A PSX-inspired first-person survival horror game where you must solve physics-based puzzles, evade a relentless serial killer, and escape the horrors hidden beneath Hare House.
- 4
The Isle of No Return
Single-player alternative to The Origin Theory - Episode One — playable solo, no multiplayer required. Shares Adventure with The Origin Theory - Episode One.
The Isle of No Return takes you to a forgotten prison island, where a dark experiment has unleashed unimaginable horrors. Explore, survive and uncover hidden secrets as you face bloodthirsty creatures in an environment where every step may be your last.
- 5
Evil Officer
Single-player alternative to The Origin Theory - Episode One — playable solo, no multiplayer required. Shares Adventure with The Origin Theory - Episode One.
You are kidnapped and locked up in Jail. Can you escape? Well, it's not gonna be easy when the Evil Officer is roaming around!
- 6
Paranormal Inc.
Single-player alternative to The Origin Theory - Episode One — playable solo, no multiplayer required. Shares Adventure with The Origin Theory - Episode One.
Horror with a real life footage. You will watch live CCTV footage and report the anomalies you see.
- 7
CLEARANCE: S-7
Single-player alternative to The Origin Theory - Episode One — playable solo, no multiplayer required. Shares Adventure with The Origin Theory - Episode One.
November 1989, Czechoslovakia. As a secret-police officer you descend into the hidden facility Š-7, ordered to burn the archives and silence the witnesses. But no one down there is still alive — only corpses, tapes, and things that used to be people. A retro survival horror about guilt and memory.
- 8
5 nights at Timokha 4: School
Single-player alternative to The Origin Theory - Episode One — playable solo, no multiplayer required. Shares Adventure with The Origin Theory - Episode One.
Continuation of the legendary saga about the naughty Timokha and his delicious pie!