Games like Zenith Into Maronarium
Games like Zenith Into Maronarium include SANABI, Broforce, Exit the Gungeon, Terminator 2D: NO FATE, and Alex Jones: NWO Wars. We matched them by the tags players give Zenith Into Maronarium on Steam (Adventure, Side Scroller, Action, 2D Platformer, and Arcade): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · Adventure · 2D Platformer

Broforce
Shared: Action · 2D · Side Scroller

Exit the Gungeon
Shared: Adventure · Action · Arcade

Terminator 2D: NO FATE
Shared: Side Scroller · 2D Platformer · Action

Alex Jones: NWO Wars
Shared: Action · Arcade · 2D Platformer

Rogue Legacy 2
Shared: Arcade · Action · Adventure

Shovel Knight: Treasure Trove
Shared: Adventure · Action · 2D

Guns, Gore and Cannoli 2
Shared: Side Scroller · Action · Adventure

Sonic Origins
Shared: Adventure · Action · 2D Platformer

NINJA GAIDEN: Ragebound
Shared: Action · 2D Platformer · Side Scroller

Huntdown
Shared: Side Scroller · Action · Pixel Graphics

CARRION
Shared: Action · Adventure · Pixel Graphics

Momodora: Reverie Under The Moonlight
Shared: Side Scroller · 2D Platformer · Pixel Graphics

Angry Video Game Nerd I & II Deluxe
Shared: Side Scroller · 2D Platformer · Adventure

METAL SLUG
Shared: Action · Side Scroller · Arcade

Katana ZERO
Shared: Action · 2D Platformer · Pixel Graphics

Warhammer 40,000: Boltgun
Shared: Action · Old School · Arcade

ICEY
Shared: Action · Side Scroller · Adventure

Mark of the Ninja: Remastered
Shared: Action · Side Scroller · 2D

UFO 50
Shared: Action · Adventure · Arcade

Smilemo
Shared: Adventure · Action · 2D Platformer

Skul: The Hero Slayer
Shared: Action · 2D · Side Scroller

Blasphemous
Shared: Action · 2D · Pixel Graphics

Volgarr the Viking
Shared: Action · Adventure · 2D