Taan's gameplay is fairly similar to that of an old PC game called "Scorched". It is based around several players competing on a 2D field and throwing highly destructive and explosive things at each other. The ground itself can be destroyed which means the layout of the playing field can change drastically in the course of a game. If you're not careful you can get dug in to a hole that you can't get out of. The enemy will be able to peg you as you can't change your position and you will be quickly defeated. Taan has two main types of gameplay.
The first type of gameplay is mission mode. Upon entering the main menu screen you'll see a flashing icon telling you to click the mission mode. This mode is a single player mode where you do battle against the AI. You must defeat 3 waves of scarecrow birds (new evidence suggests they're scarecrows, but they look like birds to me). On the easy level this is seemingly trivial. You have 40 shots to kill a number of birds. In the 4th round you must defeat the boss in 10 shots. I haven't had a situation arise where I haven't managed to beat this. You will acquire various power-ups during the gameplay you can use, but other than the boss they're not really needed. Even against the boss I haven't found them overly necessary unless I want to kill him in the first 3 or 4 shots. After the game concludes you will receive some experience and get to pick a card. The card gives you some random chance of getting gold, 10, 20, 50 or 100. If you're playing in a PC방 apparently you get a 50% bonus. I think many of these games give bonuses if you play it in a PC방. Perhaps the idea is that if you are playing it there other people will play it and it may earn them more money.
The second type of gameplay is player versus player. You can compete in rooms of up to 8 players on the same screen. Each person takes a turn making a shot and it cycles. Prior to play you can push a button to change weapons. The weapons are similar but have different effective ranges and patterns as far as I can tell. Press "무기선택" in the game room itself to change your weapon. It literally means "Weapon Selection". At some point during the gameplay you'll end up dying. If you die, instead of the game being over you have a new role to play. As a ghost you can fly around and pick up various power-ups. If you want you can then add them to a team member's shot. Making it possible to add 6 power-ups to a single shot. Just be sure to push the button for it before your team member shoots. After each shot you can fly a short distance towards a power-up. Just click on the one you want to head towards. If the enemy also has dead players, they will also be trying to get them. The game will end when one side has been defeated and you will again get some experience (much more than the single player game) and some more gold.
As a casual game this is pretty fun. You can jump in to the game pretty quick and play a match or two if you have a few minutes to kill. You can easily play it with friends if you have some you want to play with as there is the ability to create password protected rooms as well. Below is part of a round I played.