Games like Hug Survivor
Games like Hug Survivor include Vampire Survivors, Touhou Hero of Ice Fairy, Muse Dash, Rabi-Ribi, and Marfusha:Sentinel Girls. We matched them by the tags players give Hug Survivor on Steam (Cute, Female Protagonist, Action Roguelike, Bullet Hell, and Tower Defense): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Touhou Hero of Ice Fairy
Shared: Female Protagonist · Bullet Hell · Cute

Muse Dash
Shared: Cute · Female Protagonist · Anime

Rabi-Ribi
Shared: Female Protagonist · Bullet Hell · Cute

Marfusha:Sentinel Girls
Shared: Female Protagonist · Cute · Anime

Brotato
Shared: Action Roguelike · Bullet Hell · Arena Shooter

Rabbit and Steel
Shared: Cute · Action Roguelike · Bullet Hell

Megabonk
Shared: Action Roguelike · Bullet Hell · Roguelite

Snezhinka:Sentinel Girls2
Shared: Cute · Action Roguelike · Bullet Hell

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Touhou Dystopian
Shared: Female Protagonist · Action Roguelike · Cute

Rocket Rats
Shared: Action Roguelike · Bullet Hell · Casual

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

Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Noobs Want to Live
Shared: Bullet Hell · Action Roguelike · 2.5D

Nova Drift
Shared: Bullet Hell · Action Roguelike · Arena Shooter

永远消失的幻想乡 ~ The Disappearing of Gensokyo
Shared: Female Protagonist · Bullet Hell · Cute

Last Command
Shared: Cute · Bullet Hell · Female Protagonist

Hades II
Shared: Action Roguelike · Female Protagonist · Action

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

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

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

Time Wasters
Shared: Action Roguelike · Bullet Hell · Arena Shooter

Arms of God
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter