Single-player games like Intruder Alert
Below are 8 single-player Steam games similar to Intruder Alert, 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 Intruder Alert page.
Ranked picks
- 1
SuperOffice
Single-player alternative to Intruder Alert — playable solo, no multiplayer required. Shares Action and Indie with Intruder Alert.
SuperOffice is an intense top down view shooter experience where time moves only when you move.
- 2
The Redundant
Single-player alternative to Intruder Alert — playable solo, no multiplayer required. Shares Action and Indie with Intruder Alert.
Step into the metallic boots of an abandoned robot and fight back against an army of virus-infected machines. In this exciting action-adventure, sneak or battle your way around the facility, uncover its secrets, and isolate each section from the network - before it's too late...
- 3
Shrouded Frontier
Single-player alternative to Intruder Alert — playable solo, no multiplayer required. Shares Action and Indie with Intruder Alert.
Play as a low level bounty hunter known as Wraith. Customize the character with different gadgets and weapons that you find or purchase to hunt bounty contracts from multiple entities any way you desire. Bring them in dead or alive for different payouts and extensive freedom of approach gameplay.
- 4
Miya
Single-player alternative to Intruder Alert — playable solo, no multiplayer required. Shares Action and Indie with Intruder Alert.
The stunning warrior maiden gracefully dances through the battlefield, slicing through demons with her blade, collecting resources, unlocking stunning outfits, and embracing the ultimate thrill of action!
- 5
ROMBIE
Single-player alternative to Intruder Alert — playable solo, no multiplayer required. Shares Action and Indie with Intruder Alert.
Modular robotics & a Central Command was suppose to usher in prosperity, yet something went terribly wrong... ROMBIEs now scour the artificial wasteland for credits, modules & purpose. You, the Elite Recovery, spawned after a routine check on society started to fail...
- 6
TimeShifters
Single-player alternative to Intruder Alert — playable solo, no multiplayer required. Shares Action and Indie with Intruder Alert.
TimeShifters is an old school first person shooter inspired by games like TimeSplitters and GoldenEye.
- 7
STAR-BOX: RPG Adventures in Space
Single-player alternative to Intruder Alert — playable solo, no multiplayer required. Shares Action and Indie with Intruder Alert.
STAR-BOX – RPG Adventures in Space!Strap on your gravity boots, power up your laser, and climb aboard your spaceship for a retro-styled, RPG-jaunt into the unknown!Travel an open-world, sandbox universe where you are the architect of your own story.
- 8
Aeon
Single-player alternative to Intruder Alert — playable solo, no multiplayer required. Shares Action and Indie with Intruder Alert.
A primitive god in ancient Greek mythology who controls time, is resurrected in the virtual world, Inspired by "The Matrix" and "Deadpool" (remember,the slower you move the slow time goes）