Games like Halcyon 6: Starbase Commander
Games like Halcyon 6: Starbase Commander include The Last Spell, Quasimorph, Into the Breach, Fell Seal: Arbiter's Mark, and Stoneshard. We matched them by the tags players give Halcyon 6: Starbase Commander on Steam (Strategy, Space, Indie, Turn-Based Combat, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

The Last Spell
Shared: Strategy · RPG · Turn-Based Combat

Quasimorph
Shared: Strategy · Turn-Based Combat · RPG

Into the Breach
Shared: Strategy · Indie · Pixel Graphics

Fell Seal: Arbiter's Mark
Shared: Strategy · Indie · RPG

Stoneshard
Shared: Strategy · RPG · Pixel Graphics

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

觅长生
Shared: Strategy · RPG · Turn-Based Combat

Warhammer 40,000: Rogue Trader
Shared: RPG · Strategy · Turn-Based Combat

Chroma Squad
Shared: Strategy · RPG · Indie

The Escapists
Shared: Strategy · Pixel Graphics · Indie

STAR WARS Zero Company™
Shared: Strategy · Turn-Based Combat · Turn-Based Strategy

Wandering Sword
Shared: RPG · Pixel Graphics · Strategy

Battle Brothers
Shared: Strategy · RPG · Turn-Based Combat

XCOM 2
Shared: Strategy · Turn-Based Combat · RPG

Hero's Adventure: Road to Passion
Shared: Strategy · RPG · Indie

The World of Kungfu: Dragon and Eagle
Shared: Indie · Strategy · RPG

The Banner Saga
Shared: Strategy · RPG · Strategy RPG

Banner of the Maid
Shared: Strategy · Indie · RPG

Darkest Dungeon®
Shared: Turn-Based Combat · RPG · Strategy

Oxygen Not Included
Shared: Base Building · Strategy · Space

Jagged Alliance 3
Shared: Strategy · Turn-Based Combat · RPG

Starpoint Gemini Warlords
Shared: Space · Strategy · RPG

MENACE
Shared: Strategy · RPG · Turn-Based Combat

Warhammer 40,000: Mechanicus
Shared: Strategy · Turn-Based Combat · Indie