Games like Spacer: Legacies
Games like Spacer: Legacies include XCOM 2, STAR WARS Zero Company™, XCOM®: Chimera Squad, Jagged Alliance 3, and BattleTech. We matched them by the tags players give Spacer: Legacies on Steam (Strategy, Tactical, Space, Sci-fi, and Turn-Based Combat): closest matches first, and among equally close ones the better-known games.

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

STAR WARS Zero Company™
Shared: Strategy · Sci-fi · Turn-Based Tactics

XCOM®: Chimera Squad
Shared: Strategy · Turn-Based Tactics · Sci-fi

Jagged Alliance 3
Shared: Strategy · Tactical · Turn-Based Tactics

BattleTech
Shared: Strategy · Sci-fi · Turn-Based Tactics

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

XCOM: Enemy Unknown
Shared: Tactical · Strategy · Sci-fi

MENACE
Shared: Strategy · Tactical · Turn-Based Tactics

Warhammer 40,000: Battlesector
Shared: Strategy · Tactical · Turn-Based Tactics

Battle Brothers
Shared: Strategy · Tactical · Turn-Based Tactics

The Last Spell
Shared: Strategy · Tactical · Turn-Based Strategy

Warhammer 40,000: Chaos Gate - Daemonhunters
Shared: Tactical · Strategy · Turn-Based Tactics

Xenonauts 2
Shared: Strategy · Tactical · Turn-Based Tactics

Sid Meier's Civilization®: Beyond Earth™
Shared: Strategy · Space · Sci-fi

Marvels Midnight Suns Digital Edition
Shared: Turn-Based Tactics · Turn-Based Combat · Tactical RPG

Into the Breach
Shared: Strategy · Turn-Based Strategy · Turn-Based Tactics

Cobalt Core
Shared: Strategy · Sci-fi · Turn-Based Strategy

Gears Tactics
Shared: Strategy · Tactical · Turn-Based Tactics

Songs of Conquest
Shared: Tactical · Turn-Based Tactics · Turn-Based Combat

FTL: Faster Than Light
Shared: Strategy · Space · Sci-fi

STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Space · Sci-fi

Showgunners
Shared: Tactical · Turn-Based Combat · Turn-Based Tactics

Warhammer 40,000: Mechanicus II
Shared: Strategy · Tactical · Turn-Based Tactics

ENDLESS Space™ 2
Shared: Strategy · Space · Sci-fi