Single-player games like The Intruder
Below are 9 single-player Steam games similar to The Intruder, 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 Intruder page.
Ranked picks
- 1

5 nights at Timokha 4: School
Single-player alternative to The Intruder — playable solo, no multiplayer required. Shares Adventure with The Intruder.
Continuation of the legendary saga about the naughty Timokha and his delicious pie!
- 2

System Shock 2: 25th Anniversary Remaster
Single-player alternative to The Intruder — playable solo, no multiplayer required. Shares Adventure with The Intruder.
System Shock® 2: 25th Anniversary Remaster is a genre defining experience that established innovative game-play mechanics that are a staple of the FPS and RPG genre today. Survive the wretched corridors of the Von Braun. Your training has prepared you for this.
- 3

Deadfall Adventures
Single-player alternative to The Intruder — playable solo, no multiplayer required. Shares Adventure with The Intruder.
Deadfall Adventures is an action-driven first-person shooter, spiced up with elements from action-adventure games. Become an adventurer, hunt for treasures, explore unknown regions of the world and rescue the damsel in distress from the clutches of enemies, both earthly and not-so-earthly.
- 4

Choo-Choo Charles
Single-player alternative to The Intruder — playable solo, no multiplayer required. Shares Adventure with The Intruder.
Navigate an open-world island in an old train, upgrade it over time, and use it to fight an evil spider train named Charles.
- 5

Dead Island 2
Single-player alternative to The Intruder — playable solo, no multiplayer required. Shares Adventure with The Intruder.
A deadly virus is spreading across Los Angeles, turning its inhabitants into zombies. Bitten, infected, but more than just immune, uncover the truth behind the outbreak and discover who - or what - you are. Survive, evolve and become the ultimate Zombie Slayer.
- 6

Zort
Single-player alternative to The Intruder — playable solo, no multiplayer required. Shares Adventure with The Intruder.
Zort is an action, adventure, and horror game that can be played with up to 4 people. Explore maps with your friends and have fun while escaping from various creatures. Experience a realistic horror experience with in-game voice chat with your friends!
- 7

VLADiK BRUTAL
Single-player alternative to The Intruder — playable solo, no multiplayer required. Shares Adventure with The Intruder.
Fight under the onslaught of mutated monsters, obsessed soldiers and even darker bosses. Just try to survive and find out what to do next in this life, simultaneously tearing your enemies to pieces.
- 8

John Carpenter's Toxic Commando
Single-player alternative to The Intruder — playable solo, no multiplayer required. Shares Adventure with The Intruder.
Pick a character and team up with three friends ‘cause it’s time to save the world. Experience intense FPS action as you obliterate hordes of terrifying monsters! You may not be on the best team of mercenaries, but you are… a Toxic Commando!
- 9

Calm Before the Storm
Single-player alternative to The Intruder — playable solo, no multiplayer required.
Calm Before the Storm is a retro japanese themed cleaning simulator game