[1][2] Set in a medieval world, Imperia Online is a predominantly militaristic strategy game.
Gold is gathered through taxes, selling resources on the Marketplace, fortress sieges, deposit interests, and as one of the possible rewards from the various caskets awarded in the game.
Imperia Online's battle system is rich and complex, despite being built with five main types of military units only.
The five main categories of units are Swordsmen, Spearmen, Archers, Cavalry and Siege Engines.
The first one sends the troops to fight only with the opponent's field army, without sieging the Fortress or pillaging the civil population.
It added the concept of Noblemen – the Emperor and his court, which can gain experience and level up in two distinct disciplines.
At least 60% influence of the entire Global map territory for a set number of hours (depending on the speed of the Realm) were required, so a victory could be secured.
As of 2016 all the eras in all realms of Imperia Online finish on a fixed date, announced in front by the game system.
The colossal structures have appeared for the first time in Version 6 and require an enormous amount of skill to be defeated.
The Dark Fortress, The Skull of Wonders, The Tower of Knowledge and The Eternal Castle are just part of the events, which unite entire realms to conquer them.
Each visitor of the main page is able to browse the game's entire history and see who were the top performing players and alliances even for a specific realm.
The game was translated in 12 languages, not in small part thanks to the efforts of Community Managers appointed from among the Imperia Online player ranks.
That same year the game is available on portals such as Yahoo, ProSieben, WildTangent, Grupa Onet and RBK Gаmes.
Imperia Online improves the partnership with Mail Ru Group by integrating Version 6 in Odnoklassniki, my.mail.ru and Vkontakte.
In 2015, Imperia Online for Windows Phone is published by Game Troopers and featured Xbox title by Microsoft.
The game offers new epic challenges with its new Global Events such as The Dark Fortress and The Skull of Wonders.
In 2016, a new feature - the Imperial Shop is introduced, where various goods like Experience Boosters, Civil and Military Buildings and Research Time Reduction, Army Strength Upgrades and other exclusive offers can be found.
The most challenging Blitz Masters Realm with a ruleset that makes the gameplay extremely competitive is implemented.
That same year, Imperia Online integrates ClanPlay - a messaging app, that allows players to communicate, plan their strategies, recruit newcomers, engage in diplomacy with other clans, and share their accomplishments.
Also, the game is officially presented at Huawei Connect Europe as one of the leading strategies available on the store.
During the same year Imperia Online participates at the War Child charity event together with other leading mobile game developers.
For the Armistice event a special premium package is released in the game while all the revenue from it is donated to support children affected by war.
At the beginning of 2019 the “Global chat” is released in all realms- a feature which improves the social element of the game and enables the players to communicate simultaneously at one place.
At the same time Imperia Online was listed on the gaming portal of Kixeye - the developer of War Commander and Battle Pirates.
After these events, Imperia Online participated once more in the global cause of War Child - special in-game packages were developed and launched.
The Nomads Invasion Tournament launched in March, followed by the fourth edition of Dominion Rush in May where 29 teams participated.
An important event was the return of The World of Legends tournament, which resumed after a two-year hiatus, at the end of July.
Game of Tribes featured a format, where competitors were divided into four tribes–Vikings, Knights, Samurai, and Huns.
Later in the year, as usual, the World Cup 2023 - “Age of Heroes” tournament took place, with Romania emerging as the winner.
So far there have been 8 types of tournaments: Nomad Invasions, Champions League, Castle Conquest, Dominion Rush, Imperial Olympics - Summer and Winter Games and World Cup.