Single-player games like Event-D
Below are 8 single-player Steam games similar to Event-D, 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 Event-D page.
Ranked picks
- 1

The Turing Choice
Single-player alternative to Event-D — playable solo, no multiplayer required. Shares Adventure with Event-D.
TTC is a science-fiction conversational adventure where your choices change everything. As an AI expert, you must evaluate K.A.I.R.O.S., an advanced AI that claims to be a Self-Aware Sentient Subject (SASS). Discover what is really happening, because nothing is what it seems.
- 2

The Turing Test
Single-player alternative to Event-D — playable solo, no multiplayer required. Shares Adventure with Event-D.
The Turing Test is a challenging first-person puzzle game set on Jupiter’s moon, Europa. You are Ava Turing, an engineer for the International Space Agency (ISA) sent to discover the cause behind the disappearance of the ground crew stationed there.
- 3

TR-49
Single-player alternative to Event-D — playable solo, no multiplayer required. Shares Adventure with Event-D.
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.
- 4

Rumu
Single-player alternative to Event-D — playable solo, no multiplayer required. Shares Adventure with Event-D.
Rumu is an intimate, narrative-driven adventure that follows the path into sentience of a robot vacuum cleaner.
- 5

State of Mind
Single-player alternative to Event-D — playable solo, no multiplayer required. Shares Adventure with Event-D.
State of Mind is a futuristic thriller game delving into transhumanism. The game explores themes of separation, disjuncture and reunification, in a world that is torn between a dystopian material reality and a utopian virtual future.
- 6

Subsurface Circular
Single-player alternative to Event-D — playable solo, no multiplayer required. Shares Adventure with Event-D.
When the truth is buried, go underground. Step into this new take on text-based adventure from the award-winning team behind Thomas Was Alone and Volume. A short story that hands you the fate of the world above, as a detective looking for answers on the Subsurface Circular.
- 7

The Talos Principle
Single-player alternative to Event-D — playable solo, no multiplayer required. Shares Adventure with Event-D.
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).
- 8

Between Horizons – A Sci-Fi Detective Adventure
Single-player alternative to Event-D — playable solo, no multiplayer required. Shares Adventure with Event-D.
Between Horizons is a narrative 2.5D sci-fi detective adventure. 33 years into the Zephyr's journey, its mission is suddenly jeopardized. Can you find the culprit before it's too late? Experience an enthralling story set in a semi-open world that branches and ends based on your choices.