Games like Xenonauts 2
Games like Xenonauts 2 include Battle Brothers, MENACE, XCOM 2, Heroes of Might and Magic: Olden Era, and Sid Meier’s Civilization® VI. We matched them by the tags players give Xenonauts 2 on Steam (Strategy, RPG, Turn-Based Strategy, Turn-Based Tactics, and Tactical): closest matches first, and among equally close ones the better-known games.

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

MENACE
Shared: Strategy · RPG · Turn-Based Strategy

XCOM 2
Shared: Strategy · RPG · Tactical

Heroes of Might and Magic: Olden Era
Shared: Strategy · RPG · Turn-Based Strategy

Sid Meier’s Civilization® VI
Shared: Strategy · Turn-Based Strategy · War

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

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

Total War: THREE KINGDOMS
Shared: Strategy · Turn-Based Strategy · War

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

Total War: ROME II - Emperor Edition
Shared: Strategy · Turn-Based Strategy · Tactical

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

Age of Wonders 4
Shared: Strategy · Turn-Based Strategy · RPG

Total War: EMPIRE – Definitive Edition
Shared: Strategy · Turn-Based Strategy · Military

Total War: NAPOLEON – Definitive Edition
Shared: Strategy · Turn-Based Strategy · War

XCOM: Enemy Unknown
Shared: Strategy · Turn-Based Strategy · Tactical

Sid Meier's Civilization VII
Shared: Strategy · Military · Grand Strategy

Hearts of Iron IV
Shared: Strategy · War · Military

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

Total War: MEDIEVAL II – Definitive Edition
Shared: Strategy · Turn-Based Strategy · War

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

Sid Meier's Civilization® V
Shared: Strategy · Turn-Based Strategy · Turn-Based

Total War: WARHAMMER II
Shared: Strategy · Turn-Based Strategy · War

Old World
Shared: Strategy · Turn-Based Strategy · War

Age of History II
Shared: Strategy · Turn-Based Strategy · War