Sacred 2:Command and Conquer

In Ice & Blood, on the Crystal Plains, when you reach the southern outpost of the seraphim, you can take up aquest named "Green Crystals", which prompts you to locate a malfunctioned seraphim device, the Crystal Collector.

The Crystal Collector is located at the edge of the map, west of the outpost and looks like this:

Anyone who has ever played a Command and Conquer game, will find out that the Crystal Collector looks awfully familiar with the Tiberium Harvester MK I, which is found in Command and Conquer 1: Tiberian Dawn. Not to mention that the green crystals are a lot like a tiberium field...