Wenlocktoad vs indra/Zombie Attack

Zombie Attack is a game created by wenlocktoad vs indra. In-game, players have to slay zombies in order to progress to the next round. Cash and exp are granted when you get a kill. Rounds get harder as the game continues. As of September 16, 2020, Zombie Attack has been favorited 3,794,081 times.

Gameplay
Zombie Attack is round based with more enemies spawning and getting tougher each round. Players that die are sent back to the lobby where they can spawn as a zombie. If all players die, the game ends. New maps are chosen through voting. A boss battle will spawn every couple rounds. Killing the boss will give you 1 key, which is used to buy skin crates.

Modes
There are two modes in Zombie Attack, Easy and Hard Mode. Easy Mode allows the use of power-ups and the zombies are easier to defeat. In Hard Mode, zombies are harder to kill and power-ups cannot be used. The rewards for each kill you get is increased.

Shop
In the shop, different weapons, upgrades, pets with special abilities, and variants of zombies can be bought using cash. Another currency, keys, is used to buy trails for weapons such as the aurora trail.

Quests
A quest system does exist which can award cash, exp, and a special pet rarely. There might be objectives in quests such as killing a specific type of zombie or completing rounds.

Bosses
The bosses of this game include: Mega Tank, King Slime, Dark Ghost, Demon Overlord, Dragon Beast, and the Alien Leader.

Trivia

 * The gameplay is very much similar to Zombie Rush.