As we just saw on Mastodon, it seems that Steam is giving us another free goodie: A part oft the definitive edition of Age Of Empires III is free to play on Steam. You also get one of the small DLCs for free, the cosmetic Lizzie pack. This trial does not contain the full game, but only 3 factions which will be rotating, as well as one of the campaigns and a part of the MP. Please check for details here, and discuss this trial with us here.