going through my humble keys and seeing some steam keys I never redeemed due to owning them already if anyone can use them here you go
Bastion: PDFEM-P3Q5L-3LCL6
Fez: FAT95-FGFBI-XJHIP
FTL: 4TD35-TFHEW-27QZD
Limbo: WGWR9-3QKK4-MV750
Serious Sam HD: The First Encounter: QV0KP-TJIRV-DB26T
Bastion: PDFEM-P3Q5L-3LCL6
Fez: FAT95-FGFBI-XJHIP
FTL: 4TD35-TFHEW-27QZD
Limbo: WGWR9-3QKK4-MV750
Serious Sam HD: The First Encounter: QV0KP-TJIRV-DB26T