Just noticed that Steam have a weekend deal with 67% - 89% off tomb raider games. My pick is definitely Shadow of the Tomb Raider Croft edition with season pass. You can get the base game cheaper, but it doesn't look like you can it with the season pass for less. Still at full price on green man gaming and humble.
The other tomb raider games are also on sale, e.g. Rise of the Tomb Raider is $13.49 for the 20th anniversary edition.
https://store.steampowered.com/sale/tomb-raider/
Enjoy!
NOTE: It's $49.63 from instant gaming, slightly cheaper. For a few cents more I'd just as sooner go Steam.
https://www.instant-gaming.com/en/3134-buy-key-steam-shadow-…
How much better is Shadow vs the first Tomb Raider?