Games like NodeRunner
Games like NodeRunner include Vampire Survivors, Brotato, Megabonk, Deep Rock Galactic: Survivor, and BALL x PIT. We matched them by the tags players give NodeRunner on Steam (Action Roguelike, Indie, Minimalist, Arena Shooter, and Arcade): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Indie · Bullet Hell

Brotato
Shared: Action Roguelike · Bullet Hell · Arena Shooter

Megabonk
Shared: Action Roguelike · Indie · Bullet Hell

Deep Rock Galactic: Survivor
Shared: Action Roguelike · Top-Down Shooter · Bullet Hell

BALL x PIT
Shared: Action Roguelike · Arcade · Bullet Hell

Windowkill
Shared: Indie · Action Roguelike · Arcade

Glyphica: Typing Survival
Shared: Action Roguelike · Arena Shooter · Top-Down Shooter

Nuclear Throne
Shared: Action Roguelike · Indie · Bullet Hell

SNKRX
Shared: Action Roguelike · Arena Shooter · Top-Down Shooter

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

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

Yet Another Zombie Survivors
Shared: Action Roguelike · Indie · Top-Down Shooter

Nova Drift
Shared: Action Roguelike · Arcade · Arena Shooter

Noita
Shared: Physics · Indie · Action Roguelike

Halls of Torment
Shared: Action Roguelike · Bullet Hell · Arcade

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

Hades
Shared: Action Roguelike · Indie · Roguelike

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

Crab Champions
Shared: Action Roguelike · Arcade · Indie

Spelunky
Shared: Action Roguelike · Indie · Arcade

Boneraiser Minions
Shared: Action Roguelike · Indie · Bullet Hell

Rogue Legacy
Shared: Indie · Action Roguelike · Roguelike

Noobs Are Coming
Shared: Action Roguelike · Arena Shooter · Bullet Hell

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