Games like Arksync
Games like Arksync include Enter the Gungeon, The Binding of Isaac: Rebirth, Nuclear Throne, Skul: The Hero Slayer, and Vampire Survivors. We matched them by the tags players give Arksync on Steam (Action, Pixel Graphics, Difficult, Sci-fi, and Twin Stick Shooter): closest matches first, and among equally close ones the better-known games.

Enter the Gungeon
Shared: Pixel Graphics · Bullet Hell · Difficult

The Binding of Isaac: Rebirth
Shared: Difficult · Pixel Graphics · Action Roguelike

Nuclear Throne
Shared: Pixel Graphics · Difficult · Action

Skul: The Hero Slayer
Shared: Action · Pixel Graphics · Action Roguelike

Vampire Survivors
Shared: Pixel Graphics · Bullet Hell · Action Roguelike

Noita
Shared: Pixel Graphics · Difficult · Roguelike

Hotline Miami
Shared: Action · Pixel Graphics · Violent

Hotline Miami 2: Wrong Number
Shared: Pixel Graphics · Action · Difficult

Megabonk
Shared: Action Roguelike · Action · Roguelike

Dungreed
Shared: Pixel Graphics · Action · Action Roguelike

Risk of Rain (2013)
Shared: Action · Pixel Graphics · Action Roguelike

Dead Estate
Shared: Difficult · Twin Stick Shooter · Action Roguelike

Atomicrops
Shared: Action · Pixel Graphics · Bullet Hell

Dead Cells
Shared: Pixel Graphics · Roguelike · Action Roguelike

The Binding of Isaac
Shared: Difficult · Action Roguelike · Action

Halls of Torment
Shared: Pixel Graphics · Action Roguelike · Bullet Hell

Voidigo
Shared: Twin Stick Shooter · Action Roguelike · Bullet Hell

Wizard of Legend
Shared: Pixel Graphics · Action · Action Roguelike

Blasphemous
Shared: Pixel Graphics · Action · Difficult

Noobs Want to Live
Shared: Pixel Graphics · Action · Bullet Hell

Star of Providence
Shared: Pixel Graphics · Bullet Hell · Action

CARRION
Shared: Pixel Graphics · Action · Indie

Streets of Rogue
Shared: Pixel Graphics · Action · Action Roguelike

Hades
Shared: Action · Action Roguelike · Indie