Games like Underwater Wars
Games like Underwater Wars include XCOM®: Chimera Squad, Warhammer 40,000: Mechanicus, XCOM: Enemy Unknown, STAR WARS Zero Company™, and XCOM 2. We matched them by the tags players give Underwater Wars on Steam (Turn-Based Tactics, Turn-Based Strategy, Turn-Based Combat, Strategy, and Indie): closest matches first, and among equally close ones the better-known games.

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

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

XCOM: Enemy Unknown
Shared: Turn-Based Strategy · Strategy · Sci-fi

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

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

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

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

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

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

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

The Banner Saga 3
Shared: Turn-Based Tactics · Strategy · Turn-Based Strategy

Xenonauts
Shared: Turn-Based Tactics · Turn-Based Strategy · Turn-Based Combat

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

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

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

Fell Seal: Arbiter's Mark
Shared: Turn-Based Tactics · Strategy · Turn-Based Combat

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

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

Othercide
Shared: Turn-Based Tactics · Strategy · Turn-Based Combat

Hard West
Shared: Turn-Based Strategy · Strategy · Turn-Based Combat

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

Mutant Year Zero: Road to Eden
Shared: Strategy · Turn-Based Combat · Turn-Based Tactics

The Banner Saga 2
Shared: Turn-Based Strategy · Strategy · Story Rich

Library Of Ruina
Shared: Story Rich · Strategy · Turn-Based Combat