Monster Line of Defense

A casual turret shooter with approaching monsters and adult content

No.25 · Released Sep 22, 2023

Reviews: Very Positive; 93% of 191
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 2 years ago; May 16, 2024
Minimum PC: Gef; 4 GB RAM · 0.4 GB disk; Full requirements

What is Monster Line of Defense?

In this single-player, top-down shooter, you move a turret left and right and fire at monsters that pile up if left alive. Levels become progressively harder, and you use in-game coins to unlock stronger weapons.

For you if...

+you prefer simple controls and a casual difficulty level

Not for you if...

−you want to move freely around the battlefield

What players say

93% of 191 reviews are positive

Players praise the anime artwork.

Screenshots and trailer

Monster Line of Defense system requirements

Minimum: Gef, 4 GB RAM, 0.4 GB of disk space.

As published by the developer.

Can my PC run Monster Line of Defense?

The published requirements do not name a graphics card we can compare.

Set up my PC →

Minimum

OS: Windows7/8/10
Processor: Intel Core i5
Graphics: NVIDIA Gef
Memory: 4 GB RAM
Storage: 400 MB available space

Does Monster Line of Defense have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Monster Line of Defense run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 18
Steam features: Family Sharing
Languages: Text only: Simplified Chinese, English, Japanese, Traditional Chinese.

Does Monster Line of Defense use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam