Single-player games like Lost/Secret A
Below are 10 single-player Steam games similar to Lost/Secret A, 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 Lost/Secret A page.
Ranked picks
- 1
Portal 2
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
- 2
Terraria
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!
- 3
Grand Theft Auto IV: The Complete Edition
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
Niko Bellic, Johnny Klebitz and Luis Lopez all have one thing in common - they live in the worst city in America. Liberty City worships money and status, and is heaven for those who have them and a living nightmare for those who don't.
- 4
Grand Theft Auto: San Andreas
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
Five years ago Carl Johnson escaped from the pressures of life in Los Santos, San Andreas... a city tearing itself apart with gang trouble, drugs and corruption. Where filmstars and millionaires do their best to avoid the dealers and gangbangers. Now, it's the early 90s. Carl's got to go home.
- 5
Far Cry 3
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
Discover the dark secrets of a lawless island ruled by violence and take the fight to the enemy as you try to escape. You’ll need more than luck to escape alive!
- 6
Dishonored
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
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.
- 7
Tomb Raider Game of the Year
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
Tomb Raider explores the intense origin story of Lara Croft and her ascent from a young woman to a hardened survivor.
- 8
Batman: Arkham Asylum Game of the Year Edition
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
Experience what it’s like to be Batman and face off against Gotham's greatest villians. Explore every inch of Arkham Asylum and roam freely on the infamous island.
- 9
Remembering/Not remembering Sin
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
Shunichi Sasaki, a young man who lost his past memories due to higher brain dysfunction, was criticized as a "murderer". Who was he really? Use memory notes to supplement his memories and explore his past.
- 10
ぼくは人狼になりたい
Single-player alternative to Lost/Secret A — playable solo, no multiplayer required. Shares Adventure with Lost/Secret A.
"I Want to Be a Werewolf" is a text-based adventure where you can enjoy the detective elements of the Werewolf game and the stories of the characters.A strange room when you wake up. "werewolf game" that starts without knowing the purpose. Mystery & suspense that sees through deception.