Heard about this game for a while but it never dropped below £7.25.
Had a look on Amazon and saw the physical PC release for under £5!
A cheap way to get this solid platformer before it becomes
Shovel Knight: Treasure Trove in Spring 2017:http://yachtclubgames.com/shovel-knight-treasure-trove-qa/
Bought my copy off MediaMerchants. It arrived shrink-wrapped with
the DRM Free installer on CD, a coloured instruction manual and two
leaflets containing a Yacht Club Games code for the Original Soundtrack
as well as a Humble Bundle gift code providing an updated DRM Free
copy and redeemable Steam key. The disk was scratch-free and
the Humble Bundle/Steam logos are found on the back of the case.
Humble Bundle: £10.99 (no soundtrack, DRM Free + Steam key)
Steam: £10.99 (no soundtrack), £14.99 (soundtrack, Steam key)
GOG: £11.99 (no soundtrack), DRM Free)
You can also listen to/buy the soundtrack here if you like:https://virt.bandcamp.com/album/shovel-knight-original-soundtrack
Things to consider: additional standard delivery costs (if no Prime).
If you don't mind waiting, this should provide some great fun!