Games like SkullWar:ProvingGrounds
Games like SkullWar:ProvingGrounds include XCOM 2, The Last Spell, XCOM®: Chimera Squad, Into the Breach, and Warhammer 40,000: Mechanicus. We matched them by the tags players give SkullWar:ProvingGrounds on Steam (Strategy, RPG, Indie, Tactical, and Sci-fi): closest matches first, and among equally close ones the better-known games.

XCOM 2
Shared: Strategy · Tactical · RPG

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

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

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

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

MENACE
Shared: Strategy · RPG · Tactical

Quasimorph
Shared: RPG · Strategy · Turn-Based Combat

Battle Brothers
Shared: Strategy · RPG · Tactical

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

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

Jagged Alliance 3
Shared: Strategy · Tactical · RPG

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

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

Xenonauts 2
Shared: Strategy · RPG · Tactical

Banner of the Maid
Shared: Strategy · RPG · Indie

ENDLESS Legend™
Shared: Strategy · RPG · Turn-Based Strategy

Mordheim: City of the Damned
Shared: RPG · Strategy · Tactical

The Banner Saga 3
Shared: Strategy · RPG · Indie

BattleTech
Shared: Strategy · Sci-fi · Tactical

Warhammer 40,000: Mechanicus II
Shared: Strategy · RPG · Tactical

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

For The King II
Shared: RPG · Strategy · Turn-Based Strategy

Shadowrun Returns
Shared: RPG · Strategy · Indie

Halfway
Shared: Strategy · RPG · Indie