Discount codes...

[ExoticPlayz]

I like how all of you took this so seriously, thanks.[DOUBLEPOST=1559224399][/DOUBLEPOST]

If you want some more perspective:

Steam keys have (from their examples) 3 formats:
AAAAA-BBBBB-CCCCC - 221073919720733357899776 possibilities - about 350 trillion millennia from previous conditions.
AAAAA-BBBBB-CCCCC-DDDDD-EEEEE - 808281277464764060643139600456536293376 possibilities...
237ABCDGHJLPRST 23 (won't use this format, never see it)

Quite honestly I feel like it would still be too difficult to mass produce them.