The Protectors of Etheria is a stand-alone mod of the game Warlords Battlecry 3 (i.e. it can be run without having the original game installed - 100% free full game). It is an improved RTS/RPG game with new campaigns, quests, terrain, units, items, heroes, modding features and more. Beta versions available for download!
Coming in 0.8.7
I'm sure everyone's been in that situation where they're being hunted down by none less than 8 enemy heroes..... wait a minute - that never happens!
What more, these ones belong to the neutral player!
WTF!?
Is this part of a quest or something, like 8 heroes just spawn and try to kill you, but if you beat them you get a reward?
Something like that. We actually have plans for a new quest condition exactly as you described. It didn't make the cut for 0.8.7 due to the complexity of how it would work and that we had already put a lot of effort into the quests this version, so it was pushed back for a later version.
But nonetheless, the above picture is indeed related to quests.