Games like The Great Rebellion
Games like The Great Rebellion include Vampire Survivors, Megabonk, Death Must Die, Skul: The Hero Slayer, and Neon Abyss. We matched them by the tags players give The Great Rebellion on Steam (Roguelike, Loot, Bullet Hell, Cyberpunk, and 2D): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Roguelike · 2D

Megabonk
Shared: Roguelike · Bullet Hell · Loot

Death Must Die
Shared: Bullet Hell · Roguelike · Roguelite

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

Neon Abyss
Shared: Roguelike · Loot · Platformer

Halls of Torment
Shared: Bullet Hell · Roguelike · Roguelite

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

Dungreed
Shared: Roguelike · Action · 2D

Dead Cells
Shared: Roguelike · 2D · Roguelite

Rogue Legacy
Shared: Roguelike · Platformer · Action

Hades II
Shared: Roguelike · Action · Roguelite

BALL x PIT
Shared: Roguelike · Bullet Hell · Action

Hades
Shared: Roguelike · Roguelite · Action

Neon Abyss 2
Shared: Roguelike · Cyberpunk · Action

Tower of Babel: Survivors of Chaos
Shared: Bullet Hell · Roguelike · Loot

Nuclear Throne
Shared: Roguelike · Bullet Hell · Action

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

Risk of Rain 2
Shared: Roguelike · Loot · Action

I Am Legion: Stand Survivors
Shared: Bullet Hell · Loot · Roguelike

Soulstone Survivors
Shared: Bullet Hell · Roguelike · Roguelite

Hero Siege
Shared: Roguelike · Action RPG · Action Roguelike

BlazBlue Entropy Effect
Shared: 2D · Action · Platformer

Nova Drift
Shared: Bullet Hell · Roguelike · Roguelite

Brotato
Shared: Roguelike · Bullet Hell · Action Roguelike