Games like Spells 'n' Stuff
Games like Spells 'n' Stuff include THE FINALS, Pavlov, PUBG: BATTLEGROUNDS, Ratz Instagib, and WARDOGS. We matched them by the tags players give Spells 'n' Stuff on Steam (Indie, Arena Shooter, FPS, Magic, and Competitive): closest matches first, and among equally close ones the better-known games.

THE FINALS
Shared: FPS · PvP · Shooter

Pavlov
Shared: VR · FPS · Shooter

PUBG: BATTLEGROUNDS
Shared: FPS · Shooter · PvP

Ratz Instagib
Shared: Arena Shooter · FPS · PvP

WARDOGS
Shared: FPS · PvP · Shooter

Bodycam
Shared: FPS · VR · Shooter

Counter-Strike: Source
Shared: FPS · Shooter · Competitive

BRAZILIAN DRUG DEALER 3: I OPENED A PORTAL TO HELL IN THE FAVELA TRYING TO REVIVE MIT AIA I NEED TO CLOSE IT
Shared: Arena Shooter · FPS · PvP

Onward
Shared: VR · FPS · Shooter

Pixel Gun 3D: PC Edition
Shared: PvP · FPS · Shooter

Counter-Strike
Shared: FPS · Shooter · Competitive

Half-Life 2: Deathmatch
Shared: FPS · Shooter · Competitive

Serious Sam Fusion 2017 (beta)
Shared: FPS · Indie · VR

RUMBLE
Shared: VR · Fighting · PvP

Project Sparrow
Shared: Arena Shooter · FPS · Competitive

Aimlabs
Shared: FPS · Shooter · Indie

AMID EVIL
Shared: FPS · Arena Shooter · Magic

Robot Roller-Derby Disco Dodgeball
Shared: Arena Shooter · FPS · PvP

Apewar
Shared: FPS · Arena Shooter · PvP

Apex Legends™
Shared: FPS · PvP · Shooter

Contractors
Shared: VR · Indie · FPS

KovaaK's
Shared: Indie · FPS · Shooter

Hot Dogs, Horseshoes & Hand Grenades
Shared: VR · FPS · Shooter

Squad
Shared: FPS · PvP · Shooter