Games like Senli 307
Games like Senli 307 include Nova Drift, Bit Blaster XL, Vampire Survivors, BALL x PIT, and SNKRX. We matched them by the tags players give Senli 307 on Steam (Shoot 'Em Up, Top-Down Shooter, Bullet Hell, Arena Shooter, and 2D): closest matches first, and among equally close ones the better-known games.
Nova Drift
Shared: Shoot 'Em Up · Bullet Hell · Arena Shooter
Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · 2D
Vampire Survivors
Shared: Bullet Hell · 2D · Roguelite
BALL x PIT
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter
SNKRX
Shared: Top-Down Shooter · Shoot 'Em Up · Arena Shooter
Chippy
Shared: Bullet Hell · Shoot 'Em Up · Arena Shooter
20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter
Brotato
Shared: Bullet Hell · Arena Shooter · Singleplayer
Time Wasters
Shared: Bullet Hell · Shoot 'Em Up · Arena Shooter
Deep Rock Galactic: Survivor
Shared: Bullet Hell · Top-Down Shooter · Arena Shooter
Geometry Arena
Shared: Arena Shooter · Top-Down Shooter · Bullet Hell
DoDonPachi Resurrection
Shared: Shoot 'Em Up · Top-Down Shooter · Bullet Hell
Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Bullet Hell · 2D
Sky Force Reloaded
Shared: Shoot 'Em Up · Bullet Hell · Top-Down Shooter
Greedland
Shared: Shoot 'Em Up · Bullet Hell · Roguelite
Glyphica: Typing Survival
Shared: Bullet Hell · Arena Shooter · Top-Down Shooter
LUFTRAUSERS
Shared: Bullet Hell · Shoot 'Em Up · 2D
Star of Providence
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
State of Anarchy: Master of Mayhem
Shared: Top-Down Shooter · Bullet Hell · Shoot 'Em Up
Titan Attacks!
Shared: Shoot 'Em Up · Arena Shooter · Bullet Hell
ZeroRanger
Shared: Shoot 'Em Up · Bullet Hell · 2D
Ikaruga
Shared: Shoot 'Em Up · Bullet Hell · Shooter
X Invader
Shared: Shoot 'Em Up · Arena Shooter · Bullet Hell
Slime 3K: Rise Against Despot
Shared: Bullet Hell · Shoot 'Em Up · Top-Down Shooter