Games like Neanderthallica
Games like Neanderthallica include ANIMAL WELL, The Messenger, Pizza Tower, UnEpic, and Owlboy. We matched them by the tags players give Neanderthallica on Steam (Puzzle Platformer, Metroidvania, Pixel Graphics, Comedy, and Funny): closest matches first, and among equally close ones the better-known games.

ANIMAL WELL
Shared: Metroidvania · Puzzle Platformer · Pixel Graphics

The Messenger
Shared: Metroidvania · Pixel Graphics · Retro

Pizza Tower
Shared: Funny · Pixel Graphics · Comedy

UnEpic
Shared: Metroidvania · Comedy · RPG

Owlboy
Shared: Pixel Graphics · Metroidvania · Adventure

Human Fall Flat
Shared: Funny · Puzzle Platformer · Adventure

Shovel Knight: Treasure Trove
Shared: Pixel Graphics · Retro · Adventure

Dead Cells
Shared: Metroidvania · Pixel Graphics · Adventure

Reventure
Shared: Pixel Graphics · Adventure · Comedy

Öoo
Shared: Puzzle Platformer · Metroidvania · Pixel Graphics

Supraland
Shared: Puzzle Platformer · Metroidvania · Adventure

Iconoclasts
Shared: Metroidvania · Pixel Graphics · Puzzle Platformer

There Is No Game: Wrong Dimension
Shared: Pixel Graphics · Funny · Comedy

Axiom Verge
Shared: Metroidvania · Pixel Graphics · Adventure

HAAK
Shared: Puzzle Platformer · Metroidvania · Pixel Graphics

Dungeon Munchies
Shared: Pixel Graphics · Funny · Adventure

Portal
Shared: Puzzle Platformer · Comedy · Funny

Out There Somewhere
Shared: Pixel Graphics · Adventure · Puzzle Platformer

Webbed
Shared: Pixel Graphics · Puzzle Platformer · 2D Platformer

Gato Roboto
Shared: Metroidvania · Pixel Graphics · Adventure

South Park™: The Stick of Truth™
Shared: Comedy · Funny · Adventure

Undertale
Shared: Pixel Graphics · Funny · Comedy

DLC Quest
Shared: Comedy · Pixel Graphics · Funny

Antonball Deluxe
Shared: Puzzle Platformer · Adventure · Pixel Graphics