BTD:BTD is a TPS/FPS game similar to a tactical shooter or survival horror where you fight for survival in a post-apocalyptic world.
It is a casual, hard-hitting game that emphasizes a realistic and severe game balance with an ease of play that requires no time or effort to prepare.
In a new era without order, brute force is the law and the right to live must be obtained by defeating the enemy in front of you.

- Includes over 20 short episodes and can be playable from any episode
- Skirmish mode that can be played repeatedly by randomly generating situations with simple settings
- Some battles are intense and involve many enemies and allies, while others require stealth play to catch the enemy by surprise
- AI that recognizes the surroundings and acts autonomously just like the player
- Relatively simple specifications with less complicated operations
- Over 26 types of equipment items

Realistic calculation of bullets

A fired bullet flies while being affected by air resistance and gravity, which vary depending on the type of warhead, and when it hits something, it may penetrate or ricochet depending on the material of the hitting part, thickness, angle, bullet speed, type of warhead, etc.
Also, when calculating damage when a character is hit, the amount of damage inflicted will of course change depending on the part of the body that is hit, as well as the realistic amount of damage depending on whether the hit is shallow or deep, penetration width, bullet speed, armored state, etc. and its negative effects are calculated.

NPC equal to player, autonomous AI

NPC AI acts autonomously like a human player.
AI does not perceive things in a fraudulent way that is impossible for human players, but acts based on the memory of information it has seen and heard within the same range of recognition as the player.
Other than the fact that the player can see the surroundings from a third-person perspective, the player and NPC will fight on equal terms.
It is a tactical shooter where it is important for the player to skillfully distract the enemy's attention and fight skillfully in order to defeat the enemy, as their physical abilities are at the same level except when dealing with monsters.

Simple specifications, ease of use, and realistic game balance

BTD:BTD aims to have simple functions that are easy for first-time players to understand, making it easy for even first-time players to start playing.
In addition, the gameplay allows you to easily start playing without having to spend time preparing in advance.
However, the combat difficulty is not that of a casual game.
Just as there are no people who are okay with being shot in real life, BTD:BTD is a serious game where you will suffer serious consequences if you are attacked by an enemy, and in some cases you will easily die.
However, unlike reality, even if you die, you can immediately try again.