Welcome again! Enjoy the ride!
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Also, here are a few non-Steam keys (from an older Humble Bundle). I don't need them, not even sure they're valid anymore:

Armoured Warfare E3 Pack: HB64LTYWI23SKZNPQQW
Battleborn Starter Skin Pack: HK5J3-R6WZX-KCJ6T-9KXTB-H5FK5
Duelyst, 20 Spirit Orbs: bfaefdb7-2df5-4ce4-88c6-0e0ebf7abb46
Pathfinder Adventures, 40 Chests: h1z-15zq-neq
Super Senso Beta Access + Starter Pack: 3sdnib1ujqKv
Warframe PC Booster Pack: 262A-2A00-5739-606F

Suppose it's all used by now, feel free to try them though. :)

Tell me if you've used any or all. Hope someone finds these helpful. :)