All heroes are designed to use and interact with 'conditions', a fixed set of debuffs that can be manipulated in complex ways.

Highly competitive map which popularised having a large quantity of heroes and items.

An ambitious and heavily-featured game of grand strategy. Teams first select one of four factions (Elves, Orcs, Creeps, Undead) which each have their own armies and hero pools. They then battle on one of five maps of wildly varying sizes, each with different objectives.

Players can destroy and rebuild outposts, construct towers and fortify their bases, reinforce specific lanes with extra troops, or re-route lanes to different locations. The heroes each have six abilities which can be empowered with a range of talents, while upgradable items can shore up weaknesses or bolster their strengths.

EotA: Twilight shares a universe with two other games: a co-op survival called EotA: Exodus and a team escape called EotA: Maze.

Emphasises rich and engaging hero combat. The game has many unusual skill-shots, and there no stuns or randomness. Combat instead focuses more on displacement and environmental or situational damage.

The jungle is a persistent team objective rather than an economic space for a single hero to occupy, and a variety of different creep camps and reward structures have appeared in the game over the years.

The game had an unusually refined item system, with a fullscreen shop interface, typed shortcuts, recommended items, recipe autocompletion, all items stacking with each-other (at reduced efficiency), and custom item stats like bonus ability radius or duration.