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Monster Line of Defense

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Monster Line of Defense screenshot 1
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Monster Line of Defense

No.25 · Published by No.25

Content notice: This Game may contain content not appropriate for all ages, or may not be appropriate for viewing at work: Sexual Content, General Mature Content。There may be subtle sexual innuendo. All characters involved in sexual content are over the age of 18.

Very Positive — 93% positive (190 reviews) · 18 achievements

Last updated 27 Sept 2026

"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.

-20%

£1.35

£1.69

Lowest price we've ever recorded

View on Steam

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£1.35£1.69

Price history

3 Sept 2026Lowest: £1.35 · Highest: £1.3512 Oct 2026

Casual · 2023 · More under £5 games

Defend your base by clicking to shoot approaching monsters in Monster Line of Defense, a casual game released in 2023 by No.25.

About this game

"Monster Line of Defense" is a casual shooting game.

Players need to control the turret in the screen by moving it left and right. Clicking the left mouse button allows the player to fire and shoot the monsters approaching from the front. If the monsters are not eliminated, they will stack up in front of the turret.

The game features a level-based progression, with each subsequent level being more challenging than the previous one.

Controls

Use the AD keys on the keyboard to move the turret,

Click the left mouse button to fire.

Before starting the game, you need to equip yourself with suitable weapons.

Game Features

The game has a casual difficulty level, making it suitable for players who don't want to expend too much effort to complete the game. In-game coins can be used to unlock more powerful weapons.

We hope everyone will enjoy this game.

Press 2+5 above the letter keys on the level selection interface to quickly unlock levels.

System Requirements

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Minimum

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

Simplified Chinese, English, Japanese, Traditional Chinese

Latest news

  • AnnouncementsOfficial

    The game Working Daily is coming soon!

    Hello players! We are thrilled to announce that *Game Name* will soon be available!This is a casual role-playing mini-game about delivering packages.As a reward for clearing the game, you can enjoy a variety of exquisite character illustrations!In the DLC version, you can still find numerous character animations and clothing variations.Each character has an independent short story,This game still features full Japanese voice acting for all characters,You can hear various girls’ voices, with full voice acting for all variations and animations!Now you can experience the characters' realistic performances!If you’re interested in our game, please feel free to add it to your wishlist.This will be a great help to us—thank you so much!
    Read full article on Community Announcements (liub35622021)
  • AnnouncementsOfficial

    The game "Doll Grabber" is about to launch!

    Hello, players. We are very happy to announce that "Doll Grabber" will be coming soon! This is a casual puzzle game that simulates a claw machine. There are 30 cute dolls waiting for you to grab! {STEAM_CLAN_IMAGE}/44647736/e40ca53463678aff150d2ebfa3c7949cefcb8975.jpg After finishing the game, you can experience various exquisite character illustrations as a reward! In the DLC version, you can still find numerous character animations and clothing differences. {STEAM_CLAN_IMAGE}/44647736/77c315232a96748ad2487badd55cc9a3fb0e6b54.jpg Now each character has an independent short story, And we are very happy to announce that this game also adds Japanese voiceovers for all characters, You can hear the voices of various girls, with full voice-overs for all differences and animations! Now you can experience the realistic performance of the role! {STEAM_CLAN_IMAGE}/44647736/16217413a8838de5a89a6245cc4bb5bef7f1a99b.gif If you are interested in our game, please add it to your wish list, This will be very helpful to us, thank you very much! {STEAM_CLAN_IMAGE}/44647736/9283985fb33d20316ff0e8089ba26c8065c07c7b.gif https://store.steampowered.com/app/2941350/_/
    Read full article on Community Announcements (liub35622021)
  • Patch NotesOfficial

    Patch Description for October 7th

    Improved compatibility with windows11
    Read full article on Community Announcements (liub35622021)
  • Patch NotesOfficial

    Updated instructions on September 29th

    1.Repir role display qustion 2.optimize role operation experience 3.Boost game load speed
    Read full article on Community Announcements (liub35622021)
  • Patch NotesOfficial

    September 25th Update Notes

    1.Fixed an issue with the display of English fonts in some message windows. 2.Added time acceleration and deceleration feature for turrets. Press the Q or E key to accelerate or decelerate (requires higher computer performance).
    Read full article on Community Announcements (liub35622021)

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