The Zombie's Onslaught

The Zombie's Onslaught is the first TZO game series and the first game released that is not officially released by EAE. It’s the most popular game in EAE currently. This game is a wave-survival game where Zombie King leads his army to attack your Core with assistance of The Demonic Union, their leader: Obsidian Lord. The player must defend and upgrade the core, hire mercenaries, and buy stronger weapons to kill the stronger enemies that will eventually appear.

Page Description
"A World War ZA (World War: Zombie Apocalypse) has come. The Undead Brigade and The Demonic Union are trying to attack the ROBLOX World and destroy our precious Core, which is containing the most vital energy and uses as a power source for our world. It is better to protect it! Use your Weapon, drive a drivable vehicle, pilot a Jet, morph into NPCs, collect the Coin and spend it for the base upgrade and more powerful weapon. Soon you will face a Zombie King who is commanding all of the zombies to assault us."

Stages
Stages are the wave counter, every 50 enemies killed will spawn a boss, if the boss is killed the stage advances (Stage 1 of 10 to Stage 2 of 10) There's 10 stages (9 for Easy and 5 for Childhood). In Stage 1 to 4, bosses are randomized, they will have their health increased by 3000 each stage that is advanced, but in Stage 5+, bosses health do not increase but have been set up manually and customized for them specifically.

NPCs
The Zombie's Onslaught has numerous Non-Playable Characters that are either your foes, or allies that assist you in combat. Most of them are counterparts to each other and usually serve a unique purpose.

Trivia

 * This was originally a path-finding test in 2014-2015 aptly named Pathfinding TEST. Content and updates continued to be added and it was eventually updated to Pathfinding TEST 2 and then was eventually got it's name it has today.
 * In 2017, an event named De RAIG Onslaught was initiated for April Fools. The regular enemies were disabled and instead Raig enemies spawned. The event was never completed and it was removed early on due to the player drop.
 * In 2014-2015, this game, like Zombie Town before it, was located on one of SuperEvilAzmil's alternate accounts before being moved to his main in 2015.
 * In older builds of TZO, numerous items that existed in the game before mid-2018 (Dragon, Carnagecopia, Helicopter, Obliterating Fortress, etc.) never returned due to ROBLOX's infamous Forced Filtering-Enabled (FE) update in that year. The game itself did return with multiple changes however.
 * This game at the moment is being re-made from the ground up, known as the Overhaul Major Update (or just Overhaul). The update is a clean-slate protocol for the game's rather infamous glitches, cheeses/balance issues and outdated features. The updated is expected to arrive in early-mid 2021.