Out now

Monster Line of Defense

Developed by No.25 · Published by No.25

Casual
StatusOut now ReleaseSep 22, 2023 Price$1.39 Steam reviews169

At a glance

PlatformsWindows
ModesSingle-player
Price$1.39
StatusOut now
Early accessNo
Steam reviews169
Languages4
Achievements18
DLC1

Overview

A casual game by No.25, published by No.25 — single-player.

Steam’s own one-line description: “"Monster Line of Defense" is a casual shooting game. Clicking the left mouse button allows the player to fire and shoot the monsters approaching from the front.” — developer/publisher text via the Steam store page.

Reception & community

Steam reviewsVery Positive — 94% positive of 176
Owners (est.)20000 – 50000
Player-voted tags:Sexual ContentMatureNSFWNudityTop-Down ShooterCasualAnimeDating SimTop-DownHentai2DShooter

Review sentiment, ownership and peak-concurrent estimates via SteamSpy; tags are player-voted on Steam. Estimates change over time.

Features & modes

Derived from the gameplay modes and feature categories Steam lists for Monster Line of Defense.

FeatureSupported
Single-playerYes
MultiplayerNo
Co-opNo
Online co-opNo
PvPNo
Cross-platform multiplayerNo
Full controller supportNo
Partial controller supportNo
Steam Cloud savesNo
Steam AchievementsYes

System requirements (PC)

As published on the Steam store page. Requirements can change between updates.

Minimum

  • OS *: Windows7/8/10
  • Processor: Intel Core i5
  • Memory: 4 GB RAM
  • Graphics: NVIDIA Gef
  • Storage: 400 MB available space
  • Sound Card: DirectX 11 Sound Device

Supported languages (4)

Simplified ChineseEnglishJapaneseTraditional Chinese

Monster Line of Defense FAQ

Answered from the official Steam listing as of June 2026. Where something hasn't been announced, we say so rather than guess.

What kind of game is Monster Line of Defense?

Steam classifies Monster Line of Defense as a Casual game, developed by No.25. "Monster Line of Defense" is a casual shooting game. Clicking the left mouse button allows the player to fire and shoot the monsters approaching from the front.

How much does Monster Line of Defense cost?

As of June 2026, Steam lists Monster Line of Defense at $1.39. Prices and regional pricing change — check the Steam page for the current figure.

Is Monster Line of Defense single-player or multiplayer?

Steam lists these modes for Monster Line of Defense: Single-player. It lists a single-player mode.

Is Monster Line of Defense on PlayStation, Xbox, or Switch?

Our data comes from the Steam (PC) store, which lists Monster Line of Defense for Windows. Console availability isn’t in our Steam-sourced data — check the official site or the console store.

Is Monster Line of Defense out yet?

Yes — Steam lists a release date of Sep 22, 2023.

What platforms is Monster Line of Defense on?

Monster Line of Defense is listed for Windows on the Steam (PC) store. Console availability isn't covered by Steam's PC store data — check the official channels.

Is Monster Line of Defense single-player or multiplayer?

Steam lists these modes: Single-player.

How much does Monster Line of Defense cost?

Steam lists it at $1.39.

Does Monster Line of Defense have achievements?

Yes — Steam lists 18 achievements for Monster Line of Defense.

Who made Monster Line of Defense?

Monster Line of Defense is developed by No.25 and published by No.25.

Where to get Monster Line of Defense

We don't sell games or track prices — this links to the official Steam store page.

View on Steam →

Listing details from Valve's public Steam store data. Not affiliated with Valve/Steam, No.25.