Ancient Arena is a custom Dota 2 game mode and statistics platform built around escalating creep waves, tactical duels, and player-created builds. In each match, eight players choose a hero and combine abilities and items as they compete to survive up to 120 waves. The format includes hero and ability bans, a draft, periodic ability picks, head-to-head duels, and a Best-of-Three final between the last two players.

Ancient Arena features 127 heroes, hundreds of abilities and items, and map-exclusive artifacts. Its website provides live match information, battle histories, streams, player and hero statistics, ratings, and detailed analytics, including duel damage and ability progression. Players can also follow ranked seasons, leaderboards, updates, and prize pools funded by developers and a portion of coin purchases.

A premium Battle Pass offers options such as expanded bans, custom lobby settings, hero locking during rerolls, enhanced match analytics, and a higher coin limit. Coins can be used for in-map purchases and customization. The site also links players to the map on Steam Workshop