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GMG has the Deus Ex Collection on sale for $8.24. Use the voucher code 22SLIC-KDEALS-EXCLUS and the price drops to $6.43.
You get one Steam keys that activates the following games:
Deus Ex: Human Revolution – Director’s Cut
Deus Ex: The Fall
Deus Ex: Game of the Year Edition
Deus Ex: Invisible War