Today developer Grinding Gear Games has released Sacrifice of the Vaal, the first mini-expansion for the online free-to-play roguelike Path of Exile. The official trailer and some details can be found below.

Content includes a showdown with the Queen of the Vaal, free-for-all- PvP mode, new league that has players taking on specific challenges, new skill gems, new Vaal-themed areas and more.

The first 50 people to defeat the Queen in each of the new challenge leagues will receive an exlusive Vaal effect.

Other details we posted earlier:

• Vaal orbs can corrupt gear (modify gear - adds an intrinsic line? corrupted boots earlier had intrinsic MS%)
• Vaal orbs can corrupt gems (makes them uber)
• Uber gems require souls to cast (roughly 14 new skills)
• Vaal artifacts occur every so often during gameplay and corrupt the area around them
• Corrupted areas will have new "bosses" (?) and is where you will find vaal orbs
• AMBUSH league (softcore): treasure chests guarded by monsters - monsters can be customised? (like maps but for chests)
• INVASION league (hardcore): new challenging bosses with new mechanics appear!
• Vaal artifact fragments: complete the artifact to unlock new area(s)
• APEX OF SACRIFICE (a new dungeon?): first 100 to kill the boss in here get a cosmetic reward!
• PVP MODES!: cutthroat mode (unsure if it is its own "league") and FFA arena