Loading…
"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.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
"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.
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.
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.
Right now the cheapest offer for Monster Line of Defense is CA$2.59 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Monster Line of Defense is CA$1.81 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Monster Line of Defense drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
