Games like Blastoids
Games like Blastoids include Vampire Survivors, Broforce, Timberman, UFO 50, and Razortron 2000. We matched them by the tags players give Blastoids on Steam (Casual, Arcade, Arena Shooter, Top-Down Shooter, and 2D): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

Broforce
Shared: Pixel Graphics · 2D · Co-op

Timberman
Shared: Casual · Pixel Graphics · Arcade

UFO 50
Shared: Arcade · Pixel Graphics · 2D

Razortron 2000
Shared: Casual · Arcade · 2D

Cyberhunt
Shared: Casual · Arcade · 2D

PAC-MAN 256
Shared: Arcade · Casual · Retro

Overcooked
Shared: Arcade · Casual · Indie

Planes, Bullets and Vodka
Shared: Casual · Arcade · 2D

Castle Crashers®
Shared: 2D · Casual · Co-op

Streets of Rage 4
Shared: Arcade · 2D · Indie

Sonic Mania
Shared: 2D · Pixel Graphics · Retro

To The Core
Shared: Casual · Arcade · 2D

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: Arcade · Casual · 2D

Rivals of Aether
Shared: Pixel Graphics · 2D · Indie

Duck Game
Shared: Pixel Graphics · 2D · Indie

Teenage Mutant Ninja Turtles: Shredder's Revenge
Shared: Pixel Graphics · Arcade · 2D

Terraria
Shared: 2D · Pixel Graphics · Multiplayer

Hotline Miami 2: Wrong Number
Shared: Pixel Graphics · Top-Down · Retro

Rhythm Doctor
Shared: Pixel Graphics · 2D · Casual

PICO PARK
Shared: Casual · 2D · Co-op

BALL x PIT
Shared: Arcade · Top-Down Shooter · Pixel Graphics

Shovel Knight: Treasure Trove
Shared: Pixel Graphics · 2D · Retro

Hotline Miami
Shared: Pixel Graphics · Top-Down · Indie