Monster Line of Defense

Monster Line of Defense

No.25 · September 22, 2023 · Sexual Content, Nudity, Top-Down Shooter, Casual, Anime

Buy Monster Line of Defense from Steam at $1.99 — the cheapest of 1 store we compare.

PC
Very Positive93% · 190 📉 Recent reviews down 79%
Best price
$1.99
lowest tracked $1.19
Steam Buy at Steam

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Where to buy Monster Line of Defense — official stores

Steam
Steam
Standard Edition · Steam
$1.99
Buy

Monster Line of Defense price by region

Monster Line of Defense costs $1.11 in Georgia (USD), £1.69 in the United Kingdom, $1.99 in the United States, €1.99 in Europe (EUR), CA$2.59 in Canada, A$2.95 in Australia, NZ$2.99 in New Zealand, R$6.99 in Brazil and zł8.99 in Poland right now.

Cheapest Monster Line of Defense offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
Georgia (USD) $1.11 −20% $1.11 — 1
United Kingdom £1.69 £1.69 — 1
United Statesyour region $1.99 $1.99 — 1
Europe (EUR) €1.99 €1.99 — 1
Canada CA$2.59 CA$2.59 — 1
Australia A$2.95 A$2.95 — 1
New Zealand NZ$2.99 NZ$2.99 — 1
Brazil R$6.99 R$6.99 — 1
Poland zł8.99 zł8.99 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About Monster Line of Defense

"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.

Monster Line of Defense — game info

Platforms
Windows
Player modes
Single-player
PC Game Pass
Not included

DLC & expansions

🎁 Complete the collection

Base game + 0 of 1 DLC at today's best prices (some DLC unpriced).

$1.99
to own everything

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Jul 9, 2024
Monster Line of Defense is a defense game with adult content. I can't believe I've fallen for the 94% positive reviews and the premise of a 'defense' game, which is a rather niche genre that I love. To start things off the game starts in Chinese and you have to navigate through menu written in Chinese with absolutely no picture or English words to luckily switch the language to English. When that's done, you can begin playing one of the 8 levels there are to play, which are all the same thing except for a few added monster types (which again, all does the same thing) and the monsters taking longer to kill. The game has around 12 different weapons and 90% of them are totally useless, too close range or insanely low damage. The rocket gun for around 6,000 or 7,000 gold clears the game without an issue, the guns after that are all trash except for the black hole weapon which doesn't even work if you speed up the game. Talking about speeding up the game, 90% of the time when I press to speed up the game it does absolutely nothing. The game is way too easy as well, I've never lost with that aforementioned rocket gun. The first level actually generates more gold than the others as well…
4 found this helpful
Recommended Jan 1, 2026
white.
1 found this helpful
Recommended Sep 7, 2024
1
1 found this helpful
Recommended Jun 9, 2026
it's alright
Recommended Oct 8, 2025
Monster Line of Defense, developed and published by No.25, is a minimalist turret shooter that aims to deliver fast-paced, arcade-style action with a straightforward premise—defend your position against relentless waves of oncoming monsters. It is a simple concept executed with raw immediacy, one that thrives on quick reflexes, constant firing, and an ever-growing sense of pressure as the hordes multiply. The game doesn’t attempt to be grand or complex; instead, it distills the shooter experience into its most essential elements—movement, aim, and survival. For players seeking instant gratification and bite-sized bursts of challenge, Monster Line of Defense serves its purpose well, though it’s also a game that wears its simplicity on its sleeve, with both the strengths and limitations that come with that design philosophy. The gameplay loop is deceptively simple. You control a turret that slides horizontally along the screen while monsters charge toward you in waves. Using basic controls, you reposition your cannon to intercept enemies and fire continuously to hold the line. The monsters vary slightly in speed and durability, forcing you to manage your targeting priorities as the …
Recommended Sep 5, 2024
Very nice illustrations with customizable accessories. Must have for H-collectors.

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