Regarding DLC installation

To install the DLC, please make sure you have purchased the game first, then click on Add to Library, and then look for the DLC Management Panel on the right side of your game library. Click on Manage My DLC to install or uninstall the DLC.

Mature Content Description

The developers describe the content like this:

This Game may contain content not appropriate for all ages, or may not be appropriate for viewing at work: Nudity or Sexual Content, General Mature Content.

About This Content

"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.
Currently in the early testing phase, there are different types of monsters that players need to eliminate in each level.
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.

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.

About DLC:
After completing the game, there will be a girl's picture as a completion reward. There may be characters with nudity. After completing the game, click on the character's avatar and then click the heart button below to view it.