Games like Grimalkin: Solar Defense Force
Games like Grimalkin: Solar Defense Force include Notes of Soul, SMITE 2, Caster, ShellShock Live, and Rock 'N' Roll Defense. We matched them by the tags players give Grimalkin: Solar Defense Force on Steam (Strategy, Action, Indie, Casual, and Adventure): closest matches first, and among equally close ones the better-known games.

Notes of Soul
Shared: Action · Adventure · Indie

SMITE 2
Shared: Action · Strategy · Adventure

Caster
Shared: Action · Indie · Adventure

ShellShock Live
Shared: Strategy · Action · Casual

Rock 'N' Roll Defense
Shared: Strategy · Action · Casual

Plebby Quest: The Crusades
Shared: Strategy · Indie · Casual

Achievement Clicker
Shared: Casual · Indie · Strategy

UFO 50
Shared: Indie · Action · Strategy

EmergeNYC
Shared: Action · Early Access · Strategy

RADical ROACH Remastered
Shared: Action · Indie · Casual

Overdungeon
Shared: Strategy · Indie · Casual

Idle Champions of the Forgotten Realms
Shared: Strategy · Adventure · Indie

G2 Fighter / 基因特工
Shared: Action · Indie · Adventure

Mount & Blade II: Bannerlord
Shared: Strategy · Action · Indie

Pikuniku
Shared: Indie · Casual · Adventure

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

Lost
Shared: Casual · Indie · Action

Han Xiongnu Wars
Shared: Strategy · Action · Indie

Wobbly Life
Shared: Adventure · Action · Casual

BEEP
Shared: Indie · Adventure · Action

[Chillas Art] Stigmatized Property
Shared: Indie · Casual · Adventure

The Scroll of Taiwu : Beyond The Dome
Shared: Strategy · Indie · Adventure

Dead Age
Shared: Strategy · Adventure · Casual

Orcs Must Die! 2
Shared: Action · Strategy · Indie