Single-player games like The Source
Below are 9 single-player Steam games similar to The Source, 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 The Source page.
Ranked picks
- 1
Alice & Aidy: The Big Adventure
Single-player alternative to The Source — playable solo, no multiplayer required. Shares Indie with The Source.
Alice & Aidy: The Big Adventure is a warm interactive story with a gentle children’s sci-fi feel. When Alice struggles to write about the future, she meets Aidy, an old companion robot. Read, choose, and explore as they search for lost sparks and learn to ask, create, and choose for themselves.
- 2
Kittengumi: The Sakabato's Thief
Single-player alternative to The Source — playable solo, no multiplayer required. Shares Indie with The Source.
Kittengumi: The Sakabato Thief transports us to an alternative Japan (Gapon) where its protagonists, a cat and a panda who thinks he is a cat, will have to recover one of the treasures of the Kittengumi -a group of samurai cats that watches over the security of the city of Nyedo.
- 3
planetarian: Snow Globe
Single-player alternative to The Source — playable solo, no multiplayer required.
"planetarian: Snow Globe," the prequel to Key's sci-fi kinetic novel "planetarian: The Reverie of a Little Planet," is now available with binaural audio support! Enjoy the story of a companion robot and her coworkers at a planetarium, and the simple joys they find in their everyday lives.
- 4
The Neverland of the Mountain and Sea
Single-player alternative to The Source — playable solo, no multiplayer required. Shares Indie with The Source.
Falling in love!! With a robot girl (fool)!!
- 5
KAMIMAHOU 神之国的魔法使
Single-player alternative to The Source — playable solo, no multiplayer required. Shares Indie with The Source.
跨越国家、时代和疆域的争论，英雄用传记、人民用历史堆叠论据。尽头，什么在等待着我们呢？ ——为纪念猫猫社20周年，由片冈智首部完全独立执笔，中日创作者共同制作的的“历史穿越系”长篇连载全篇，凝聚于此。
- 6
fault - milestone two side:above
Single-player alternative to The Source — playable solo, no multiplayer required. Shares Indie with The Source.
fault - milestone two side:above is a Cinematic Visual Novel that takes place right after the events of milestone one. Please note that this novel is a direct sequel to fault - milestone one and contains massive spoilers of the first story. Play through of the first title is highly advised.
- 7
LUNARiA -Virtualized Moonchild-
Single-player alternative to The Source — playable solo, no multiplayer required.
Genius gamer T-Bit rakes in the prize money in VR races day after day. One day, after experiencing a network error mid-race, he ends up in Lunar World, a moon-based server. There, he meets an AI avatar by the name of Lunar-Q. A love story spanning the 384,400 km between the Earth and moon begins!
- 8
Lavender Quartz 境界秤動
Single-player alternative to The Source — playable solo, no multiplayer required. Shares Indie with The Source.
希望を求めた二つの運命がゼロ地点で交差する、分岐なしのビジュアルノベル。故郷の村を戦争で奪われたイコヌは、戒厳令下の州都ミラナルクで諜報員キルシウムと出会った。墜落した人工衛星から戦局を塗り替える超常物質「原石」を持ち去った不可視の少年を追い、二人は都市を疾走する。
- 9
Keep Skeleton Alive!
Single-player alternative to The Source — playable solo, no multiplayer required.
Vampires, Necromancer, Skeleton and even a Time Traveler. This Visual Novel has it all. But most important question is, can you actually keep Skeleton alive? I guess we will find out.