Games like Aknua Tower
Games like Aknua Tower include Celeste, Geometry Dash, Hollow Knight, Super Meat Boy, and Hollow Knight: Silksong. We matched them by the tags players give Aknua Tower on Steam (Casual, Platformer, Precision Platformer, 2D, and 1990's): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · Platformer · Indie

Geometry Dash
Shared: 2D · Precision Platformer · Platformer

Hollow Knight
Shared: Platformer · 2D · Singleplayer

Super Meat Boy
Shared: Platformer · Precision Platformer · 2D

Hollow Knight: Silksong
Shared: 2D · Platformer · Indie

BEEP
Shared: Platformer · 2D · Indie

Jump King
Shared: Precision Platformer · Platformer · 2D

FEZ
Shared: Platformer · Casual · Indie

The End Is Nigh
Shared: Platformer · Precision Platformer · 2D

LIMBO
Shared: Platformer · 2D · Indie

Thomas Was Alone
Shared: Platformer · Precision Platformer · 2D

Downwell
Shared: Precision Platformer · Platformer · Indie

Kaze and the Wild Masks
Shared: 1990's · 2D · Casual

GRIS
Shared: Platformer · Indie · Adventure

Nihilumbra
Shared: Platformer · Casual · Adventure

VVVVVV
Shared: Platformer · Precision Platformer · 2D

Minimalism
Shared: Casual · Platformer · Indie

Melvor Idle
Shared: Casual · 2D · Singleplayer

Pikuniku
Shared: Casual · Adventure · Indie

Super Fancy Pants Adventure
Shared: Platformer · Casual · Adventure

Mark of the Ninja
Shared: Platformer · 2D · Indie

SANABI
Shared: 2D · Singleplayer · Adventure

Dust: An Elysian Tail
Shared: Platformer · 2D · Indie

Chained Together
Shared: Platformer · Casual · Adventure