I saw it reviewed on X-play.

Something stirs in the darkness. A hot earthy smell wafts up from the dank depths. Nails scratch against limestone, dripping water echoes off cavern walls, ancient chains rattle in stagnant air…. What lies in the eerie depths below?
Dungeon Runners is an online role-playing game that’s free to download and free to play!
As a brave hero, you’ll explore dangerous dungeons, battle ferocious monsters and discover incredible weapons, artifacts and loot.
Choose to play as Fighter, Mage or Ranger in a realm of terror, magic and adventure. Unlock powerful new skills as you gain experience on your journey into the unknown.
Whether fighting evil hordes as a lone warrior or teaming up with online friends to carve a path of destruction through your foe, Dungeon Runners will quench your deepest dungeon-crawling thirst.

Has anyone played it yet?

http://www.dungeonrunners.com/