It seems that interest in the current version of Lara Croft may be waning, as physical sales of Shadow of the Tomb Raider have dropped 70% from those of the Tomb Raider reboot game that was released in 2013.
Shadow of the Tomb Raider's sales, at the time of release, were higher than those of Rise of the Tomb Raider, but that was due to the fact that Rise of the Tomb Raider was a timed exclusive for the Xbox One. Shadow of the Tomb Raider is available for the PlayStation 4, Windows, and Xbox One, yet it's still lagging behind the sales of Tomb Raider from 2013.
Shadow of the Tomb Raider was released during a busy period, with Spider-Man on the PlayStation seemingly eating up everyone's attention. It would likely have helped Shadow of the Tomb Raider's chances if it had been released a few weeks earlier, as there was less competition at the time.
It's possible that the lack of interest for Shadow of the Tomb Raider may be due to the fact that the series hasn't evolved in any meaningful way. The Tomb Raider reboot created a fresh new take on Lara Croft, while also offering some incredible gameplay. Rise of the Tomb Raider opened up the world and allowed the player to tackle the adventure at their own pace, while also fixing a lot of the issues with the first game.
Shadow of the Tomb Raider has received a more mixed reception than its predecessors, with one of the common complaints being that it's too similar to previous entries in the series. The footage of Shadow of the Tomb Raider that was shown during E3 rang a lot of alarm bells, as the game looked almost identical to Rise of the Tomb Raider.
Shadow of the Tomb Raider may offer some comfort to the PC/Xbox gamers who are looking at Spider-Man with jealous eyes, but it hasn't done much to progress the series further. The sales of the game reflect this, as this was the time for the Tomb Raider series to shake things up, rather than playing it safe.