Acheron appeared in 2021 video game called Monster Legends. The Inheritor and Kaih the Sunmelter have only started their new roles as co-rulers of Hell, but they're already feeling the pains of power. Their latest problem is that Acheron, a beast they were keeping in the dungeons to torture their prisoners, has escaped and gone through it to another galaxy!
Acheron is a monstrous Dark Attacker who can eat his enemies by dealing very high damage with a low CD. Although he relies a bit on this, as his self buffs require a turn to set up, which is easily removable by PER, and he only has 1 AoE torture (second one is only single target). His trait is also nothing impressive, protecting him from nothing but Burn and Ignite with his Demon trait, and he’s also hardened, and can block resurrection too. But his SC can help him a bit with ITC. He’s got great power for dealing more damage, and the amazing Essence relic to either counter stamina drain or for revival. If you want to clean your enemies, Acheron is a good choice.