Games like NEONFALL
Games like NEONFALL include Vampire Survivors, Skul: The Hero Slayer, Risk of Rain 2, BlazBlue Entropy Effect, and Broforce. We matched them by the tags players give NEONFALL on Steam (Action, Action Roguelike, 2D, Aliens, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · 2D · Singleplayer

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

Risk of Rain 2
Shared: Action Roguelike · Action · Co-op

BlazBlue Entropy Effect
Shared: Action Roguelike · Action · 2D

Broforce
Shared: Action · 2D · Co-op

The Binding of Isaac: Rebirth
Shared: Action Roguelike · Indie · 2D

Hades
Shared: Action Roguelike · Action · Indie

Gang Beasts
Shared: Action · Co-op · Singleplayer

ShellShock Live
Shared: Action · 2D · Casual

Castle Crashers®
Shared: 2D · Co-op · Action

Risk of Rain (2013)
Shared: Action Roguelike · Action · Indie

Rogue Legacy
Shared: Action Roguelike · Action · 2D

Spelunky
Shared: Action Roguelike · 2D · Indie

Ravenswatch
Shared: Action Roguelike · Action · Co-op

Enter the Gungeon
Shared: Action Roguelike · Indie · 2D

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

Windowkill
Shared: Action · Action Roguelike · 2D

Have a Nice Death
Shared: Action Roguelike · 2D · Action

Megabonk
Shared: Action Roguelike · Action · Indie

Dungreed
Shared: Action Roguelike · Action · 2D

Death Must Die
Shared: Action Roguelike · Action · 2D

Terraria
Shared: 2D · Co-op · PvP

Cult of the Lamb
Shared: Action Roguelike · Singleplayer · 2D

Pikuniku
Shared: Indie · Action · Co-op