Steam is having a sale on the Deus Ex franchise.
Deus Ex: Mankind Divided $17.99 USD (70% off)
Deus Ex: Human Revolution - Director's Cut $4.99 USD (75% off)
Deus Ex: The Fall $2.49 USD (75% off)
Deus Ex: Invisible War $1.74 USD (75% off)
Deus Ex: Game of the Year Edition $1.74 USD (75% off)
The Deus Ex Collection $34.32 USD (74% off)
PSA, If you loved the original Dues EX and are trying to get back that Win98SE nostalgia with a modern reboot, this is NOT it. They went in a terrible direction.
Don't take my word for it, scan over the reviews :)