Timeline

كابال أونلاين was developed by ESTsoft and launched in South Korea in October 2005. A European version followed in September 2006 (with a closed beta beginning June 26, 2006). The North American server entered open beta on February 1, 2008 and officially launched on February 28 – March 3, 2008. The Southeast Asian (SEA) server entered open beta on March 3, 2008. ESTsoft's German publishing partner Gameforge launched a German-language service in December 2009, and OGPlanet took over the North American publishing rights at the end of March 2010.

The classic episode era of كابال أونلاين introduced all original systems, maps, classes, and dungeons. Key milestones include Episode IV – Porta Inferno (September 2010), which raised the level cap to 180 and added the Porta Inferno region. Episode V – Mercenaries (December 2010) added the mercenary system, in-game mail, and dual-pet support. Episode IX – Rising Force (January 2013) introduced the Arcane Trace map and a new PvP system. Episode X – Gladiator (around 2013) added the Gladiator class as the sixth playable class. Episode XV – Clashing Nations (May 2016) introduced the Senillinea continent and revamped the mercenary system. Episode XVI – Legends Unleashed (October 2016) added the Legend Arena. Episode XVII – Force Gunner (June 2017) added the Force Gunner class — the seventh class — and introduced Battle Mode 3; the level cap reached 200. This episode is generally considered the last of the classic era.

Between the end of the classic Force Gunner episode and the start of the modern era, Episodes XVIII through XXIII delivered incremental updates to systems, balance, and content. These episodes updated gear progression, introduced early Myth-level content, and refined PvP and dungeon systems. Episode XXIV – Triumph (April 22, 2020) marked the start of what players and ESTsoft's own update pages call the modern episode era, with more complex dungeon structures and new types of progression rewards.