Games like Star-Twine
Games like Star-Twine include FTL: Faster Than Light, Cosmoteer: Starship Architect & Commander, Outer Wilds, Stellaris, and Heat Signature. We matched them by the tags players give Star-Twine on Steam (Indie, Strategy, Space, and Atmospheric): closest matches first, and among equally close ones the better-known games.

FTL: Faster Than Light
Shared: Strategy · Space · Indie

Cosmoteer: Starship Architect & Commander
Shared: Space · Indie · Strategy

Outer Wilds
Shared: Space · Atmospheric · Indie

Stellaris
Shared: Strategy · Space · Atmospheric

Heat Signature
Shared: Indie · Space · Strategy

Plague Inc: Evolved
Shared: Strategy · Indie · Atmospheric

ENDLESS Space™ 2
Shared: Strategy · Space · Atmospheric

Crying Suns
Shared: Strategy · Space · Indie

This War of Mine
Shared: Atmospheric · Strategy · Indie

IXION
Shared: Space · Strategy · Atmospheric

Deliver Us The Moon
Shared: Indie · Space · Atmospheric

Space Pirates And Zombies 2
Shared: Strategy · Space · Indie

ENDLESS Space™ - Definitive Edition
Shared: Strategy · Space · Indie

Homeworld Remastered Collection
Shared: Strategy · Space · Atmospheric

Observation
Shared: Indie · Space · Atmospheric

StarDrive 2
Shared: Indie · Strategy · Space

Nexus - The Jupiter Incident
Shared: Strategy · Space · Indie

Isonzo
Shared: Indie · Atmospheric · Strategy

Breathedge
Shared: Space · Indie · Atmospheric

Warhammer 40,000: Rogue Trader
Shared: Strategy · Atmospheric · Space

Battlefleet Gothic: Armada 2
Shared: Strategy · Space · Atmospheric

ISLANDERS
Shared: Strategy · Indie · Atmospheric

Beholder
Shared: Strategy · Atmospheric · Indie

EarthX
Shared: Indie · Strategy · Space