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New Humble Weekly Sale is up for Arcen Games.
Pay What You Want for:
AI War: Fleet Command + All 5 DLC packs
A Valley Without Wind
A Valley Without Wind 2
Tidalis
Beat the average for:
Shattered Haven
Skyward Collapse + Nihon no Mura DLC
There’s a $1 minimum if you want Steam keys. All the titles can be activated on Steam.