Kamen Rider Ex-Aid: Destiny's Game

Kamen Rider Gaim: Cyber Realm (, Japanese: 仮面ライダー鎧武（ガイム）：サイバーレルム, Hepburn: Kamen Raidā Gaimu: Saibā Rerumu) is a upcoming crossover fanmake that is to mainly involve Kamen Rider Gaim and Sword Art Online. It also takes it's inspiration from an idea by the famous Kamen Rider crossover fanfiction writer Ten-Faced Paladin.

Plot
One night, a programmer discovers the Death Game function while looking through some files related to Sword Art Online. In a vain attempt to ensure that many people do not die, he sends some files from his project, a VRMMORPG called Kamen Rider Online, to make sure that some of the players find these files and use them wisely.

A week after the Death Game begins, a Beta tester named Kirito discovers a portal to a realm dubbed the Helheim Forest. After he gets into an incident involving the realm, he learns from a hologram of the afforementioned programmer that he added this realm and everything about it for the sole purpose of saving the other players. Now armed with the Sengoku Driver, Kirito sets off on a journey to save everyone from certain death. However, he must now contend with other Kamen Riders as well as other VRMMORPG players that were assimilated into SAO in what becomes a Sword Art Online warring states period.