Games like Astro Prospector
Games like Astro Prospector include Vampire Survivors, Megabonk, Brotato, Death Must Die, and Halls of Torment. We matched them by the tags players give Astro Prospector on Steam (Incremental, Roguelike, Casual, Roguelite, and Action Roguelike): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

Megabonk
Shared: Roguelike · Action Roguelike · Roguelite

Brotato
Shared: Roguelike · Action Roguelike · Bullet Hell

Death Must Die
Shared: Action Roguelike · Roguelite · Bullet Hell

Halls of Torment
Shared: Roguelite · Action Roguelike · Roguelike

Soulstone Survivors
Shared: Roguelite · Action Roguelike · Roguelike

BALL x PIT
Shared: Roguelite · Roguelike · Bullet Hell

Boneraiser Minions
Shared: Action Roguelike · Roguelite · Bullet Hell

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

The Spell Brigade
Shared: Roguelite · Roguelike · Bullet Heaven

Bills Must Be Paid
Shared: Incremental · Roguelite · Capitalism

20 Minutes Till Dawn
Shared: Action Roguelike · Roguelite · Bullet Hell

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Roguelite · Roguelike

Rogue: Genesia
Shared: Roguelite · Action Roguelike · Bullet Hell

Hades
Shared: Roguelite · Action Roguelike · Roguelike

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

Tower of Babel: Survivors of Chaos
Shared: Roguelike · Action Roguelike · Roguelite

Nuclear Throne
Shared: Roguelike · Action Roguelike · Bullet Hell

Yet Another Zombie Survivors
Shared: Action Roguelike · Bullet Heaven · Roguelite

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

Pass the Fear
Shared: Roguelite · Action Roguelike · Roguelike

Atomicrops
Shared: Roguelike · Bullet Hell · Action Roguelike

Nova Drift
Shared: Roguelite · Bullet Hell · Action Roguelike

Noobs Want to Live
Shared: Roguelike · Bullet Hell · Casual