Single-player games like Cosmic Ultramarine
Below are 8 single-player Steam games similar to Cosmic Ultramarine, 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 Cosmic Ultramarine page.
Ranked picks
- 1
RGB GlitchGazer
Single-player alternative to Cosmic Ultramarine — playable solo, no multiplayer required. Shares Indie and Adventure with Cosmic Ultramarine.
A mad and romantic ADV. Unravel a strange world of science and philosophy with a mecha girl, zombie girl, or beastfolk. Some paths may disturb you... or thrill you.
- 2
Sibylline
Single-player alternative to Cosmic Ultramarine — playable solo, no multiplayer required. Shares Indie and Adventure with Cosmic Ultramarine.
An amnesia patient wakes up in a locked room. An insomniac watches the world end. An arcane text only visible via projectors and sleep deprivation. Use your mic to give life to the story. Cleanse the corruption and navigate your way to the last chapter to learn the secrets of the Sibylline.
- 3
q.u.q.
Single-player alternative to Cosmic Ultramarine — playable solo, no multiplayer required. Shares Indie with Cosmic Ultramarine.
q.u.q. is a surreal visual novel about a somewhat crude girl that wanders a desert.
- 4
Dream Catcher: Prologue
Single-player alternative to Cosmic Ultramarine — playable solo, no multiplayer required. Shares Adventure with Cosmic Ultramarine.
Embark on a short but memorable adventure across Nappia! Spend your first night as a Dream Catcher solving intricate puzzles, meeting unique characters, and reminiscing about life's ups and downs. This experience is packed with content that inspires and leaves you thinking.
- 5
Stiff Neck
Single-player alternative to Cosmic Ultramarine — playable solo, no multiplayer required. Shares Indie and Adventure with Cosmic Ultramarine.
A story about the self—and about others. A toy factory, several cursed dolls, and a horror novel… This quiet seaside town throws Noele's love life into chaos and dredges up the old wounds she has tried for years to forget.
- 6
Methods: The Canada Files
Single-player alternative to Cosmic Ultramarine — playable solo, no multiplayer required. Shares Indie and Adventure with Cosmic Ultramarine.
Methods: The Canada Files is a mystery visual novel. You play as a team of eccentric detectives in a mysterious crime-solving competition. To solve each mystery, you must use your team member’s unique detective methods, refute faulty theories with evidence, and find out the truth!
- 7
涨粉二维码
Single-player alternative to Cosmic Ultramarine — playable solo, no multiplayer required. Shares Indie and Adventure with Cosmic Ultramarine.
现实的存在感在我面前逐渐崩解，我们对彼此的认知也在不断扭曲。 既然现实中的我无可救药——那么，请你爱上完全虚构的我吧。
- 8
彗星战团
Single-player alternative to Cosmic Ultramarine — playable solo, no multiplayer required. Shares Indie and Adventure with Cosmic Ultramarine.
在黑暗的时代，乘上独一无二的机动装甲，反抗统治太阳系的军工巨企。《彗星战团》是一款以科幻战争为主题的国产机战视觉小说，致力于营造独特的影视化观感。——你将成为点燃整个时代的星火！