Games like Streamline
Games like Streamline include ShellShock Live, Caster, Rock 'N' Roll Defense, Plebby Quest: The Crusades, and Achievement Clicker. We matched them by the tags players give Streamline on Steam (Action, Strategy, Indie, and Casual): closest matches first, and among equally close ones the better-known games.

ShellShock Live
Shared: Strategy · Action · Casual

Caster
Shared: Action · Indie · Casual

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

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

Achievement Clicker
Shared: Casual · Indie · Strategy

Plague Inc: Evolved
Shared: Strategy · Indie · Casual

Total Tank Simulator
Shared: Strategy · Action · Indie

Town of Salem
Shared: Strategy · Indie · Casual

UFO 50
Shared: Indie · Action · Strategy

Tooth and Tail
Shared: Strategy · Indie · Action

Game Dev Tycoon
Shared: Indie · Strategy · Casual

Monument Valley 2
Shared: Strategy · Action · Casual

Overdungeon
Shared: Strategy · Indie · Casual

Witch It
Shared: Indie · Casual · Action

Mini Motorways
Shared: Strategy · Casual · Indie

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

RADical ROACH Remastered
Shared: Action · Indie · Casual

SMITE 2
Shared: Action · Strategy · Casual

Notes of Soul
Shared: Action · Indie · Strategy

Deadly Days
Shared: Action · Indie · Casual

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

Bloons TD 5
Shared: Strategy · Action · Casual

SMITE®
Shared: Action · Strategy · Indie

PixelJunk™ Nom Nom Galaxy
Shared: Indie · Strategy · Action