Counter-Strike Portable (abbreviated as CS Port and now known as Critical Strike Portable) is a game based on the Unity graphics engine and using nVidia PhysX physics. It is a copy of Valve's Counter-Strike modifcation.

game modes
Being a copy of the Counter-Strike game, the game includes the classic mode in which the player chooses the CT (Counter-Terrorists) or T (Terrorists) side to play, the game also has several modes that Counter-Strike itself does not have. (this if the famous mods are installed in the game), they are:

classic
Team Deathmatch
Zombie Mode (It's the new mode in the game, the rules are All vs All, but instead of just choosing Humans, you can play with Zombies.)
Bomb Planting - Just like the original game, it is also possible to plant the bomb.
Survival - A customizable survival mode, it is possible for example not to have zombies and leave only terrorists as enemies.

Discord Server:
https://discord.gg/Y7YzyWr