Games like Hardpoint
Games like Hardpoint include Nova Drift, BALL x PIT, SNKRX, Deep Rock Galactic: Survivor, and Chippy. We matched them by the tags players give Hardpoint on Steam (Arena Shooter, Bullet Hell, Shoot 'Em Up, Top-Down Shooter, and Roguelite): closest matches first, and among equally close ones the better-known games.

Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Arena Shooter

BALL x PIT
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

SNKRX
Shared: Arena Shooter · Roguelite · Top-Down Shooter

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

Chippy
Shared: Bullet Hell · Arena Shooter · Shoot 'Em Up

Vampire Survivors
Shared: Bullet Hell · Roguelite · 2D

20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Roguelite

Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter

Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Shooter

Time Wasters
Shared: Bullet Hell · Arena Shooter · Roguelite

Star of Providence
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

Glyphica: Typing Survival
Shared: Arena Shooter · Bullet Hell · Top-Down Shooter

X Invader
Shared: Arena Shooter · Shoot 'Em Up · Bullet Hell

Slime 3K: Rise Against Despot
Shared: Bullet Hell · Roguelite · Shoot 'Em Up

Sektori
Shared: Shoot 'Em Up · Arena Shooter · Bullet Hell

Brotato
Shared: Bullet Hell · Arena Shooter · Roguelite

DoDonPachi Resurrection
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter

Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · Shooter

LUFTRAUSERS
Shared: Bullet Hell · Shoot 'Em Up · Arcade

Bot Vice
Shared: Bullet Hell · Top-Down Shooter · Shoot 'Em Up

State of Anarchy: Master of Mayhem
Shared: Bullet Hell · Top-Down Shooter · Shoot 'Em Up

Halls of Torment
Shared: Bullet Hell · Roguelite · Arcade

Geometry Arena
Shared: Arena Shooter · Bullet Hell · Top-Down Shooter

Titan Attacks!
Shared: Arena Shooter · Bullet Hell · Shoot 'Em Up