The base game had big discounts but the complete edition was still around 20€ or more depending on where it was on sale. They should have been more aggresive selling the complete edition for less.The game was on sale for 75% two times in the 4 weeks, got steadily increasing discounts before that and it was also in August's Humble Monthly. Also lots of streamer were and are playing on Twitch. Not sure what more they could've done tbh.