Games like Sweep The Underworld
Games like Sweep The Underworld include Vampire Survivors, Loop Hero, 20 Minutes Till Dawn, Noobs Want to Live, and That's not my Neighbor. We matched them by the tags players give Sweep The Underworld on Steam (Resource Management, Casual, Choices Matter, Adventure, and Top-Down Shooter): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Casual · Bullet Hell · Singleplayer

Loop Hero
Shared: Roguelike · Resource Management · Choices Matter

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

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

That's not my Neighbor
Shared: Casual · Adventure · Choices Matter

Brotato
Shared: Roguelike · Singleplayer · Bullet Hell

Apocalypse Party
Shared: Casual · Top-Down Shooter · Singleplayer

Dome Keeper
Shared: Resource Management · Singleplayer · Roguelike

Melvor Idle
Shared: Casual · Adventure · Singleplayer

Yes, Your Grace
Shared: Choices Matter · Casual · Resource Management

Dead Cells
Shared: Adventure · Roguelike · 2D

Balatro
Shared: Roguelike · Singleplayer · Casual

DAVE THE DIVER
Shared: Casual · Adventure · Singleplayer

Cyberhunt
Shared: Casual · Adventure · Indie

Potion Craft: Alchemist Simulator
Shared: Singleplayer · Resource Management · Casual

Kingdom Rush Frontiers - Tower Defense
Shared: Choices Matter · Casual · Singleplayer

This War of Mine
Shared: Choices Matter · Singleplayer · Resource Management

The Pale Beyond
Shared: Resource Management · Choices Matter · Adventure

Tiny Rogues
Shared: Top-Down Shooter · Bullet Hell · Roguelike

Emily is Away <3
Shared: Choices Matter · Casual · Singleplayer

Florence
Shared: Casual · Adventure · Singleplayer

Undertale
Shared: Choices Matter · Singleplayer · 2D

Insurmountable
Shared: Adventure · Resource Management · Singleplayer

Minishoot' Adventures
Shared: Adventure · Casual · Bullet Hell