Games like lil' Sherman
Games like lil' Sherman include Orcs Must Die! 2, Orcs Must Die!, ShellShock Live, Thronefall, and GemCraft - Chasing Shadows. We matched them by the tags players give lil' Sherman on Steam (Indie, Tower Defense, Tanks, Strategy, and Action): closest matches first, and among equally close ones the better-known games.

Orcs Must Die! 2
Shared: Tower Defense · Indie · Strategy

Orcs Must Die!
Shared: Tower Defense · Strategy · Action

ShellShock Live
Shared: Tanks · Strategy · Action

Thronefall
Shared: Tower Defense · Strategy · Action

GemCraft - Chasing Shadows
Shared: Tower Defense · Indie · Strategy

X-Morph: Defense
Shared: Tower Defense · Indie · Strategy

Sanctum 2
Shared: Tower Defense · Strategy · Indie

Orcs Must Die! 3
Shared: Tower Defense · Strategy · Action

Total Tank Simulator
Shared: Strategy · Indie · Action

Rock 'N' Roll Defense
Shared: Tower Defense · Strategy · Indie

Rock of Ages
Shared: Indie · Tower Defense · Strategy

Infested Planet
Shared: Tower Defense · Strategy · Indie

Kingdom Rush - Tower Defense
Shared: Tower Defense · Strategy · Action

Taur
Shared: Tower Defense · Strategy · Indie

Defense Grid: The Awakening
Shared: Tower Defense · Strategy · Indie

Kingdom Rush 5: Alliance TD
Shared: Tower Defense · Strategy · Indie

DG2: Defense Grid 2
Shared: Tower Defense · Strategy · Action

Rock of Ages 2: Bigger & Boulder™
Shared: Strategy · Indie · Action

Sang-Froid - Tales of Werewolves
Shared: Tower Defense · Strategy · Indie

Deathtrap
Shared: Tower Defense · Indie · Strategy

Bloons TD 5
Shared: Tower Defense · Strategy · Action

Sanctum
Shared: Tower Defense · Strategy · Indie

Space Run
Shared: Tower Defense · Indie · Strategy

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · Indie