I think I am going to buy Planet Zoo for right now and I might get Parkitect at a later date. Planet Zoo is on sale and with Humble Choice I can get the Deluxe Edition + the Arctic pack for just a little over $40USD.
The Parkitect game likely will not be on sale again until the Summer Sale from the looks of things.
The Parkitect game likely will not be on sale again until the Summer Sale from the looks of things.