Games like ManaTech
Games like ManaTech include Stick Fight: The Game, Magicka, Rivals of Aether II, Duck Game, and Brawlhalla. We matched them by the tags players give ManaTech on Steam (Action, Early Access, Fantasy, Twin Stick Shooter, and 4 Player Local): closest matches first, and among equally close ones the better-known games.

Stick Fight: The Game
Shared: Action · Local Multiplayer · 4 Player Local

Magicka
Shared: Action · Fantasy · 4 Player Local

Rivals of Aether II
Shared: Action · Local Multiplayer · Fantasy

Duck Game
Shared: Action · Local Multiplayer · 4 Player Local

Brawlhalla
Shared: Local Multiplayer · Action · Fantasy

Move or Die
Shared: Action · Local Multiplayer · 4 Player Local

SOULCALIBUR VI
Shared: Action · Fantasy · Local Multiplayer

HELLDIVERS™ Dive Harder Edition
Shared: Action · Twin Stick Shooter · 4 Player Local

NARUTO SHIPPUDEN: Ultimate Ninja STORM 4
Shared: Action · Local Multiplayer · Fantasy

Middle-earth™: Shadow of Mordor™
Shared: Action · Fantasy

Bopl Battle
Shared: Action · 4 Player Local · Local Multiplayer

Party Panic
Shared: 4 Player Local · Action · Local Multiplayer

Battle Realms: Zen Edition
Shared: Action · Fantasy · Early Access

Middle-earth: Shadow of War
Shared: Action · Fantasy

Crawl
Shared: 4 Player Local · Local Multiplayer · Action

Nine Parchments
Shared: 4 Player Local · Action · Fantasy

Mortal Kombat X
Shared: Action · Local Multiplayer · Fantasy

Monster Hunter: World
Shared: Action · Fantasy

Gang Beasts
Shared: Action · Local Multiplayer · 4 Player Local

KurtzPel
Shared: Action · Fantasy · Early Access

BioShock Infinite
Shared: Action · Fantasy

Crimson Desert Enhanced
Shared: Action · Fantasy

SpeedRunners
Shared: Local Multiplayer · Action · 4 Player Local

Slap City
Shared: Action · Local Multiplayer · 4 Player Local