Games like Scrap Battalion
Games like Scrap Battalion include Mechabellum, The Bazaar, Tabletop Tavern, Broken Arrow, and Backpack Battles. We matched them by the tags players give Scrap Battalion on Steam (Strategy, Wargame, Auto Battler, Roguelite, and Hack and Slash): closest matches first, and among equally close ones the better-known games.

Mechabellum
Shared: Strategy · Auto Battler · Wargame

The Bazaar
Shared: Strategy · Auto Battler · Asynchronous Multiplayer

Tabletop Tavern
Shared: Strategy · Wargame · Roguelite

Broken Arrow
Shared: Strategy · Wargame · 3D

Backpack Battles
Shared: Strategy · Auto Battler · Asynchronous Multiplayer

XCOM 2
Shared: Strategy · Tactical · Sci-fi

Dota Underlords
Shared: Strategy · Auto Battler · Tactical

Warhammer 40,000: Battlesector
Shared: Strategy · 3D · Tactical

Total War: WARHAMMER II
Shared: Strategy · Fantasy · War

Super Fantasy Kingdom
Shared: Strategy · Auto Battler · Roguelite

9 Kings
Shared: Strategy · Auto Battler · Roguelite

He is Coming
Shared: Strategy · Auto Battler · Roguelite

Eslabong
Shared: Strategy · Auto Battler · Roguelite

Starship Troopers: Terran Command
Shared: Strategy · Wargame · Tactical

Oaken Tower
Shared: Strategy · Auto Battler · Asynchronous Multiplayer

DYNASTY WARRIORS: ORIGINS
Shared: Hack and Slash · Wargame · Strategy

Kingdom Heroes 8
Shared: Strategy · Wargame · Hack and Slash

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

Book of Yog Idle RPG
Shared: Auto Battler · Hack and Slash · Strategy

Dominions 6 - Rise of the Pantokrator
Shared: Strategy · Asynchronous Multiplayer · Wargame

Totally Accurate Battle Simulator
Shared: Strategy · War · 3D

Just King
Shared: Strategy · Roguelite · Auto Battler

The Last Flame
Shared: Strategy · Auto Battler · Tactical

Tower Dominion
Shared: Strategy · Roguelite · Tactical