Single-player games like Keystone Library
Below are 9 single-player Steam games similar to Keystone Library, 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 Keystone Library page.
Ranked picks
- 1
智探
Single-player alternative to Keystone Library — playable solo, no multiplayer required. Shares Indie and RPG with Keystone Library.
The Last Question is an AI-powered detective mystery game where every question matters. Interrogate suspects freely, uncover contradictions, collect clues, and solve complex cases through your own reasoning.
- 2
Book of Infinity: 1001 Nights
Single-player alternative to Keystone Library — playable solo, no multiplayer required. Shares Indie and Adventure with Keystone Library.
Can you survive an evil King who kills a bride every night by telling stories? A story-crafting game based on a unique narrative system — Become the storyteller Scheherazade from Persian folklore, weave tales to the King through typing, and guide his words to forge magical weapons for your revenge!
- 3
Hellscape
Single-player alternative to Keystone Library — playable solo, no multiplayer required. Shares Adventure and RPG with Keystone Library.
Hellscape is a "Based-Text" Adventure game. Similar to Text-Based games from the 80's, with a lighthearted twist, and way more balls jokes than ever necessary.
- 4
朕不想死！
Single-player alternative to Keystone Library — playable solo, no multiplayer required. Shares Indie and Adventure with Keystone Library.
Late Ming collapse—you carry a ruler’s secret in a world of blades and famine. Card combat drives battles and plot branches; AI persuasion challenges key figures, and skill cards help you win. Minigames change what comes next. Raise attributes and destiny, explore for events, items.
- 5
Emily_
Single-player alternative to Keystone Library — playable solo, no multiplayer required. Shares Adventure with Keystone Library.
Chat with a mysterious AI, uncover secret codes and find hidden files. Your choices may lead you to uncover different things, the only way to find the truth is through Emily and whatever was left inside the old computer. You need her help
- 6
Hymer 2000
Single-player alternative to Keystone Library — playable solo, no multiplayer required. Shares Indie and Adventure with Keystone Library.
Hymer 2000 is an interactive text puzzle game, where players freely converse with the "Hymer" and use an open "Search" function to retrieve past conversations. By discovering keywords, gathering clues, and collecting "Faces", players uncover Hymer's secrets and ultimately shut it down.
- 7
7 Days to End with You
Single-player alternative to Keystone Library — playable solo, no multiplayer required. Shares Indie and Adventure with Keystone Library.
To know a language, know the world, and finally know you.
- 8
浮生箓 Floating Life
Single-player alternative to Keystone Library — playable solo, no multiplayer required. Shares Indie and Casual with Keystone Library.
《浮生箓》是一款剧情重开模拟游戏，互动式轻量小说游戏。支持创意工坊自由编辑与上传自己的剧本，融合如修仙、武侠、玄幻等小说题材的背景，可自由选择出生的剧本，体验千变万化的人生，从出生开始让你体验到丰富多变的剧情，多种多样的选择，不同选择带来不同的变化，各种有趣的梗。来吧，开始你的浮生之旅，随着进程生成自己的浮生箓！
- 9
Gridmax
Single-player alternative to Keystone Library — playable solo, no multiplayer required. Shares Early Access with Keystone Library.
Survive a hostile alien world, gather resources, build a settlement, and grow your colony. Craft tools, construct defenses, and adapt to harsh environments in this open-ended survival colony simulator.