Single-player games like Acid Spy
Below are 14 single-player Steam games similar to Acid Spy, 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 Acid Spy page.
Ranked picks
- 1
Cyber Rail
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action with Acid Spy.
Cyber Rail is a frenetic roguelike FPS with robot cowboys, speedy parkour, and devastating synergies. Grapple, slide, and swing as you hunt down enemy bandits on your flying diesel train.
- 2
Sword With Sauce
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action with Acid Spy.
Sword With Sauce is a fast-paced stealth-action game where you pick weapons, gadgets, and a playstyle to eliminate enemies. Go in loud or stay unseen—it's your choice.
- 3
DESYNC
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action and Indie with Acid Spy.
DESYNC is an intense single-player first person action game that begs you to play dangerously and creatively. Eliminate your opponents as you perform violent attack sequences using the explosive digital weaponry and lethal side-arms at your disposal.
- 4
ION Shift
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action and Indie with Acid Spy.
ION Shift delivers fast, high-stakes gameplay with precision controls and a unique sandbox-style approach to combat arenas. The campaign progressively challenges the player through evolving level design, tight mechanics, and a focus on player-driven mastery.
- 5
Celerity
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action and Indie with Acid Spy.
Celerity is a fast-paced FPS parkour game. Use Wall Running, Grappling Hooks, Hookshots and many more, chain your moves and never lose momentum.
- 6
Titanfall® 2
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action with Acid Spy.
Respawn Entertainment gives you the most advanced titan technology in its new, single player campaign & multiplayer experience. Combine & conquer with new titans & pilots, deadlier weapons, & customization and progression systems that help you and your titan flow as one unstoppable killing force.
- 7
Turbo Overkill
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action and Indie with Acid Spy.
Enter Paradise as Johnny Turbo—half-metal, half-human, all-murder machine. Clean up the streets with a chainsaw leg, 15+ weapons and your hovercar as you battle the rogue AI Syn, rival bounty hunters and cyberpunks aplenty. Apogee’s most outrageous FPS since Duke Nukem 3D. Good hunting, Sir!
- 8
Ion Fury
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action and Indie with Acid Spy.
3D Realms, creators of Duke Nukem 3D, Prey, and Max Payne, team up with Voidpoint to bring back the legendary Build Engine, famous for classic shooters like Duke Nukem 3D, Shadow Warrior, and Blood. Fast-paced FPS combat across huge, secret-packed levels. Ion Fury is the real deal!
- 9
Tom Clancy's Splinter Cell®
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action with Acid Spy.
Enter the world of cinematic stealth action with Splinter Cell, the game that propelled the genre to cult status. You are Sam Fisher, an elite covert agent in the NSA's top-secret division: Third Echelon.
- 10
Dishonored
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action with Acid Spy.
Dishonored is an immersive first-person action game that casts you as a supernatural assassin driven by revenge. With Dishonored’s flexible combat system, creatively eliminate your targets as you combine the supernatural abilities, weapons and unusual gadgets at your disposal.
- 11
Thief
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action with Acid Spy.
Garrett, the Master Thief, steps out of the shadows into the City. In this treacherous place, where the Baron’s Watch spreads a rising tide of fear and oppression, his skills are the only things he can trust. Even the most cautious citizens and their best-guarded possessions are not safe from his reach.
- 12
Titanfall - The Final Hours
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action with Acid Spy.
Written over the past four years, journalist Geoff Keighley ("The Final Hours of Portal 2") chronicles the making of TITANFALL from Respawn Entertainment. This longform app features never-before-seen photos, video and concept art from early development versions of the game.
- 13
DUSK
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action and Indie with Acid Spy.
Battle through an onslaught of mystical backwater cultists, possessed militants & even darker forces as you attempt to discover just what lurks beneath the Earth in this retro FPS inspired by the '90s legends.
- 14
Mirror's Edge™ Catalyst
Single-player alternative to Acid Spy — playable solo, no multiplayer required. Shares Action with Acid Spy.
Mirror's Edge™ Catalyst raises the action-adventure bar through fluid, first person action and immerses players in Faith's story as she fights for freedom.