Single-player games like SYNTHS
Below are 8 single-player Steam games similar to SYNTHS, 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 SYNTHS page.
Ranked picks
- 1
Your Desktop Companion - Lumi
Single-player alternative to SYNTHS — playable solo, no multiplayer required. Shares Indie and Simulation with SYNTHS.
Lumi is a local-first 3D AI companion that lives directly on your Windows desktop. Chat by text or voice, build a relationship over time, react to your music, and keep the core AI experience running locally on your PC.
- 2
Sia Desktop Pet
Single-player alternative to SYNTHS — playable solo, no multiplayer required. Shares Indie and Simulation with SYNTHS.
A chibi AI VTuber who lives on your desktop, on top of everything you do. Pet her and feed her, and she opens up one thing at a time: monster battles, desktop soccer, a 24-fish dex, tarot readings, 11 outfits and 26 achievements.
- 3
SagoCat
Single-player alternative to SYNTHS — playable solo, no multiplayer required. Shares Indie and Simulation with SYNTHS.
A cat lives in your computer. It stays up when you work late and joins in when you curse your boss. Your music? "That's what you're listening to?" — it grumbles, then stays till the song ends. Give it time and it becomes the one you want next to you. It keeps a diary. You're allowed to read it.
- 4
Manita
Single-player alternative to SYNTHS — playable solo, no multiplayer required. Shares Indie and Simulation with SYNTHS.
Talk to Manita by speaking or typing — she always answers out loud with her own voice. Every reply is generated live by AI, not from pre-written dialogue.
- 5
Quality Dreams, Reasonably Priced
Single-player alternative to SYNTHS — playable solo, no multiplayer required. Shares Indie and Simulation with SYNTHS.
Work as a body modification consultant in a dystopian future. Talk to clients, make recommendations, and decide how much to upsell them. Balance helping others with earning enough to save your sick rabbit. Make decisions and change lives.
- 6
My Summer Love: Memories
Single-player alternative to SYNTHS — playable solo, no multiplayer required. Shares Simulation and Casual with SYNTHS.
Kang Yuna is a student at Seoul University of Arts. She's very intelligent and charming. One summer in the nineties, you meet her by chance. Could love blossom between you?
- 7
Love, Lies and Memories.
Single-player alternative to SYNTHS — playable solo, no multiplayer required. Shares Simulation with SYNTHS.
Shape your own relationships, even within the same story. In a handcrafted story, AI-powered personalized choices and free-form conversations create unique connections with three heroines in this relationship simulation.
- 8
Aibond
Single-player alternative to SYNTHS — playable solo, no multiplayer required. Shares Indie and Simulation with SYNTHS.
An anime-style AI companion with true long-term memory. No installation, free to start. Chat, play, study together — your always-present everyday friend.