Single-player games like The Assembly
Below are 12 single-player Steam games similar to The Assembly, 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 Assembly page.
Ranked picks
- 1
Obduction
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Indie and Adventure with The Assembly.
A new sci-fi adventure from Cyan, the creators of Myst. Abducted far across the universe, you find yourself on a broken alien landscape with odd pieces of Earth. Explore, uncover, solve, and find a way to make it home.
- 2
FORM
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Indie and Adventure with The Assembly.
Enter a surreal adventure where puzzles are built from dreams and memories. Solve the mystery behind an ancient artifact. Advance through a world that transforms around you. Transcend this existence.
- 3
Myst
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Indie and Adventure with The Assembly.
Welcome to Myst: a starkly beautiful island, eerily tinged with mystery and shrouded in intrigue. Built from the ground up to play in 2D & VR, explore Myst in a whole new dimension! Journey to the Ages, unravel puzzles, and be a part of the surrealistic adventure that will become your own.
- 4
TR-49
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Adventure with The Assembly.
A World War II computer. An archive of lost books. A world-changing secret. Narrative deduction meets audio drama, from the creators of Overboard!, Heaven's Vault and A Highland Song.
- 5
Red Matter 2
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Indie and Adventure with The Assembly.
Red Matter 2 is an immersive, puzzle-adventure game that will transport you to the far reaches of space. Step into the shoes of Sasha, an agent awakened in a lunar base by an undercover operative and tasked with uncovering the secrets of the mysterious Red Matter.
- 6
The Talos Principle
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Indie and Adventure with The Assembly.
The Talos Principle is a first-person puzzle game in the tradition of philosophical science fiction. Made by Croteam and written by Tom Jubert (FTL, The Swapper) and Jonas Kyratzes (The Sea Will Claim Everything).
- 7
The Novelist
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Indie and Adventure with The Assembly.
The Novelist asks one central question: can you achieve your dreams without pushing away the people you love? The game focuses on Dan Kaplan, a novelist struggling to write the most important book of his career while trying to be the best husband and father he can be.
- 8
The Gap
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Indie and Adventure with The Assembly.
Driven by a rare neurological affliction plaguing his family, Joshua has to recover his memories by exploring parallel realities through déjà vu. Facing the innermost depths of his past – moments both joyous and painful – seems to be the only way to get his life and family back together.
- 9
Portal
Single-player alternative to The Assembly — playable solo, no multiplayer required.
Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.
- 10
Firewatch
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Indie and Adventure with The Assembly.
Firewatch is a single-player first-person mystery set in the Wyoming wilderness, where your only emotional lifeline is the person on the other end of a handheld radio.
- 11
Quern - Undying Thoughts
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Adventure with The Assembly.
Discover the truth about Quern’s past, unfold the mysteries of its present, and be the explorer who shapes its future. Quern introduces reusable puzzle mechanics to the classic genre, making the player think about the game as a whole, and not just as a series of individual challenges.
- 12
Fracked
Single-player alternative to The Assembly — playable solo, no multiplayer required. Shares Adventure with The Assembly.
Stranded in a remote mountain facility, you play as a reluctant hero forced to defend the planet in a final stand against a legion of interdimensional enemies. Take aim and run head-first into explosive action as you shoot, ski, and climb your way across an extreme adventure.