Single-player games like Backdoor
Below are 10 single-player Steam games similar to Backdoor, 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 Backdoor page.
Ranked picks
- 1
System Clues
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie and Simulation with Backdoor.
You pick up a laptop on the roadside. Boot it, log in, read emails, scroll chat logs — and NexusCore scandals surface: financial fraud, employee surveillance, an AI performance system. Will you stay a bystander, dig in, or gather evidence yourself? Every keystroke reshapes the fate of the world.
- 2
Netshell
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie and Simulation with Backdoor.
A 90s-themed hacking simulation with real shell commands and authentic techniques, set inside a UNIX-style operating system from 1997 with accurately recreated applications. Scan ports, exploit vulnerabilities, evade traces, join the underground, and live the Wild West era of the early internet.
- 3
Hifuu OS: Hack Into the Barrier
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie and Adventure with Backdoor.
Hifuu OS: Immersive hacking simulator based on the Touhou Project. Play as Renko Usami, learn and use authentic terminal commands to hack into the Great Hakurei Barrier. Unravel the truth behind Maribel Hearn's mysterious coma as you search through Gensokyo's secret and private documents.
- 4
Ghostpunk
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie and Adventure with Backdoor.
Investigate paranormal cases using a 1990s CRT terminal. Analyze photos. Decode audio. Interrogate suspects and decide what’s real, what’s fake and who’s lying. But the deeper you go, the more the system starts watching you back.
- 5
VSCS-II
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie and Adventure with Backdoor.
VSCS-II is a retro-styled narrative game about privacy and security. Using an upgraded '80s operating system, navigate an underground network to make connections, unearth conspiracies, and ultimately decide the fate of the dark web.
- 6
Flashpaper
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie and Adventure with Backdoor.
You are the unseen hand — the resistance's digital arm inside a regime that has begun burning books. Crack the Concord's networks from a green-phosphor terminal, cover every log you touch before the trace fills, and get paid off-grid. 24 missions. Three you are not meant to win.
- 7
Cyber Manhunt
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie and Simulation with Backdoor.
Cyber Manhunt is a story-oriented puzzle game focusing on big data, hacking, citizen privacy, and social workers. It focuses on social issues such as cyber violence and privacy breaches.
- 8
HACK_IT
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie and Adventure with Backdoor.
HACK_IT presents players with a fully immersive hacking experience, you’ll meet characters and find out things you never imagined. Including interactive apps that will give you the power to shutdown servers and retrieve passwords.
- 9
Cloudy with a Chance of Kittens
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie and Simulation with Backdoor.
Cloudy with a Chance of Kittens is a cozy, Suika-inspired, puzzle game where adorable, dessert-shaped cats fall from the clouds. Unlock power-ups, set up satisfying chains and combos, brave obstacles and cheeky weather twists. Play to relax or compete to leave your pawprint on our leaderboards. 🐈
- 10
Shelter 13
Single-player alternative to Backdoor — playable solo, no multiplayer required. Shares Indie with Backdoor.
You run an animal shelter that hosts both living and supernatural animals. Manage your resources and pet inventory, care for your unusual residents, screen potential adopters, and face difficult moral choices. Always keep the lights on and your eyes open. Some things only come out in the dark.