Games like Loot Frog
Games like Loot Frog include Megabonk, Brotato, Astro Prospector, Death Must Die, and Tower of Babel: Survivors of Chaos. We matched them by the tags players give Loot Frog on Steam (Incremental, Casual, Bullet Hell, Bullet Heaven, and Relaxing): closest matches first, and among equally close ones the better-known games.

Megabonk
Shared: Bullet Heaven · Bullet Hell · Roguelite

Brotato
Shared: Bullet Hell · Bullet Heaven · Roguelite

Astro Prospector
Shared: Incremental · Casual · Bullet Hell

Death Must Die
Shared: Bullet Hell · Roguelite · Bullet Heaven

Tower of Babel: Survivors of Chaos
Shared: Bullet Heaven · Bullet Hell · Roguelite

20 Minutes Till Dawn
Shared: Bullet Hell · Roguelite · Survival

Vampire Survivors
Shared: Bullet Hell · Roguelite · Casual

Bills Must Be Paid
Shared: Incremental · Roguelite · Relaxing

Shelldiver
Shared: Incremental · Casual · Relaxing

Soulstone Survivors
Shared: Bullet Heaven · Bullet Hell · Roguelite

Timber Rush
Shared: Casual · Incremental · Relaxing

Nordic Ashes: Survivors of Ragnarok
Shared: Bullet Heaven · Bullet Hell · Roguelite

Halls of Torment
Shared: Bullet Hell · Roguelite · Bullet Heaven

Keep on Mining!
Shared: Incremental · Casual · Relaxing

A Game About Feeding A Black Hole
Shared: Incremental · Casual · Relaxing

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

Dragon Cliff
Shared: Incremental · Casual · Strategy

Cookie Clicker
Shared: Incremental · Casual · Indie

Enter the Gungeon
Shared: Bullet Hell · Dungeon Crawler · Roguelike

Idle Champions of the Forgotten Realms
Shared: Incremental · Strategy · Casual

Neon Abyss
Shared: Bullet Heaven · Bullet Hell · Roguelike

Jotunnslayer: Hordes of Hel
Shared: Bullet Heaven · Roguelite · Casual

Boneraiser Minions
Shared: Bullet Hell · Roguelite · Bullet Heaven

Nodebuster
Shared: Incremental · Casual · Strategy