UPDATE: The GOTY Edition is no longer available.
To get free Steam keys for Tomb Raider and Lara Croft and the Temple of Osiris, you need to:
- Register a new account or login at Square Enix Store EU / Square Enix Store NA
- Visit Stay Home and Play page (EU / NA), add both games to cart and press checkout button
The keys will be available in your order history at Square Enix Store. Enjoy!