Games like Kollectomaniac
Games like Kollectomaniac include Inscryption, Machinarium, Blue Prince, Samorost 1, and CloverPit. We matched them by the tags players give Kollectomaniac on Steam (Real Time Tactics, Roguelite, Puzzle, Point & Click, and Roguelike): closest matches first, and among equally close ones the better-known games.

Inscryption
Shared: Puzzle · Roguelite · Roguelike

Machinarium
Shared: Puzzle · Point & Click · 2D

Blue Prince
Shared: Puzzle · Roguelite · First-Person

Samorost 1
Shared: Point & Click · Puzzle · Surreal

CloverPit
Shared: Roguelite · Roguelike · Strategy

Vampire Survivors
Shared: Roguelite · 2D · Roguelike

Nubby's Number Factory
Shared: Roguelike · Strategy · Surreal

Yokai Art: Night Parade of One Hundred Demons
Shared: Roguelite · Real Time Tactics · Strategy

Dead Cells
Shared: Roguelike · Roguelite · 2D

Smile For Me
Shared: Puzzle · Point & Click · First-Person

There Is No Game: Wrong Dimension
Shared: Puzzle · Point & Click · Indie

The Room
Shared: Puzzle · Point & Click · First-Person

Balatro
Shared: Roguelike · Roguelite · Strategy

Skul: The Hero Slayer
Shared: Roguelite · Roguelike · 2D

Gunfire Reborn
Shared: Roguelite · Roguelike · Indie

Slots & Daggers
Shared: Strategy · Roguelike · Roguelite

Mewgenics
Shared: Roguelite · Cute · 2D

The Legend of Bum-Bo
Shared: Roguelite · Puzzle · Strategy

Gorogoa
Shared: Puzzle · Point & Click · Indie

Peglin
Shared: Roguelite · Roguelike · Strategy

Zup!
Shared: Puzzle · 2D · Point & Click

Brutal Orchestra
Shared: Roguelite · Strategy · Roguelike

DemonCrawl
Shared: Puzzle · Roguelite · Strategy

The Tiny Bang Story
Shared: Puzzle · Point & Click · 2D