Games like Neon Abyss 2
Games like Neon Abyss 2 include Risk of Rain 2, Streets of Rogue, Vampire Survivors, Neon Abyss, and Gunfire Reborn. We matched them by the tags players give Neon Abyss 2 on Steam (Action Roguelike, Online Co-Op, Cyberpunk, Roguelike, and Funny): closest matches first, and among equally close ones the better-known games.

Risk of Rain 2
Shared: Action Roguelike · Roguelike · Action

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

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

Neon Abyss
Shared: Roguelike · Platformer · Cyberpunk

Gunfire Reborn
Shared: Online Co-Op · Roguelike · Action Roguelike

Risk of Rain (2013)
Shared: Action Roguelike · Roguelike · Online Co-Op

Enter the Gungeon
Shared: Action Roguelike · Roguelike · Bullet Hell

Megabonk
Shared: Action Roguelike · Roguelike · Roguelite

Dead Cells
Shared: Action Roguelike · Roguelike · Pixel Graphics

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

Children of Morta
Shared: Roguelike · Online Co-Op · Action Roguelike

Ravenswatch
Shared: Action Roguelike · Roguelike · Online Co-Op

Death Must Die
Shared: Action Roguelike · Pixel Graphics · Bullet Hell

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

Dungreed
Shared: Action Roguelike · Roguelike · Pixel Graphics

Nuclear Throne
Shared: Action Roguelike · Roguelike · Pixel Graphics

Hades
Shared: Action Roguelike · Roguelike · Action

Heroes of Hammerwatch
Shared: Action Roguelike · Online Co-Op · Pixel Graphics

Rogue Legacy
Shared: Action Roguelike · Roguelike · Platformer

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

Hero Siege
Shared: Action Roguelike · Pixel Graphics · Roguelike

Roboquest
Shared: Action Roguelike · Online Co-Op · Roguelite

The Spell Brigade
Shared: Online Co-Op · Action Roguelike · Roguelike

Sephiria
Shared: Action Roguelike · Roguelike · Action