Panzer Dragoon: Remake is 75% off on Steam at the moment. 
The anniversary coincides with some discounts for the game. Not only is Panzer Dragoon: Remake 75% off on Steam, but it’s heavily discounted on Nintendo Switch too.
Panzer Dragoon: Remake is 75% off on GOG.com at the moment. Here’s the page where you can pick up a DRM-free copy of the game:
In case you missed the earlier sales, Panzer Dragoon: Remake is 75% off on Steam again.
There’s been a few sales of Panzer Dragoon: Remake recently and now it’s the Nintendo Switch’s turn. $6.24 (normally $24.99).
Lots of people were asking for this version to go on sale. Well, now you can grab Panzer Dragoon: Remake for 50% off on the PlayStation Store. The sale ends on the 19th of June.
https://store.playstation.com/en-nz/product/EP3948-CUSA19484_00-PANZERDRAGOON001
Panzer Dragoon: Remake is 75% off during the Steam Summer Sale - ends 9th of July.