Games like Newtonia
Games like Newtonia include Among Us, HELLDIVERS™ 2, HELLDIVERS™ Dive Harder Edition, Risk of Rain Returns, and Castle Crashers®. We matched them by the tags players give Newtonia on Steam (Top-Down Shooter, Arcade, Space, Physics, and Score Attack): closest matches first, and among equally close ones the better-known games.

Among Us
Shared: Space · Online Co-Op · 2D

HELLDIVERS™ 2
Shared: Online Co-Op · PvE · Space

HELLDIVERS™ Dive Harder Edition
Shared: Top-Down Shooter · Online Co-Op · Local Co-Op

Risk of Rain Returns
Shared: Online Co-Op · Local Co-Op · PvE

Castle Crashers®
Shared: Online Co-Op · 2D · Co-op

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

Stick Fight: The Game
Shared: Physics · Action · 2D

How to Fish
Shared: Online Co-Op · Physics · Co-op

Gang Beasts
Shared: Physics · Co-op · Action

Human Fall Flat
Shared: Physics · Co-op · Local Co-Op

Broforce
Shared: Local Co-Op · Co-op · Action

Starship Troopers: Extermination
Shared: Online Co-Op · Arcade · Action

Sky Force Reloaded
Shared: Arcade · Top-Down Shooter · Local Co-Op

METAL SLUG 3
Shared: Arcade · Local Co-Op · Co-op

PEAK
Shared: Physics · Online Co-Op · Co-op

Ship of Fools
Shared: Top-Down Shooter · Local Co-Op · Online Co-Op

Trailmakers
Shared: Space · Online Co-Op · Action

Overcooked
Shared: Arcade · Local Co-Op · Co-op

Move or Die
Shared: Online Co-Op · Action · 2D

Vampire Survivors
Shared: Arcade · 2D · Local Co-Op

Hotshot Racing
Shared: Arcade · Split Screen · Indie

Space Engineers
Shared: Space · Physics · Co-op

Renegade Ops
Shared: Arcade · Local Co-Op · Online Co-Op

The Spell Brigade
Shared: Online Co-Op · Top-Down Shooter · Co-op