Square Enix’s popular and acclaimed Go line of mobile titles has come to an end, the boss of Square Enix Montreal confirmed for PC Games Insider yesterday.

Patrick Naud told PC Games Insider that the game’s price point factored into the decision to mothball the series, which hasn’t seen a new entry since Deus Ex Go in August 2016.

“It’s one of the challenges we have today is the premium mobile market is diminishing,” Naud said. “You’ve got more and more high-quality free titles, so there are even fewer and fewer people inclined to try something that will not be free.”

Lara Croft Go, Hitman Go and Deus Ex Go are currently $4.99 each on the iOS app store, although all three can be had in a bundle for the same price. On Google Play for Android, they are on sale for 99 cents each at the moment; they usually list for $4.99 there, too.

“That doesn’t mean that they won’t spend in-game, but they want to spend on a game that they’re sure they’re going to like,” he said. “The perception of choice makes it that even if it’s only $5, that’s too much.”

The Go franchise began in April 2014 with Hitman Go, which was nominated in two categories at the 2015 British Academy Games Awards and made several publications’ best-of lists in the mobile category. It was later ported to PlayStation 4, PS Vita, and Steam.

Square Enix followed that in 2015 with Lara Croft Go, an adaptation of the Tomb Raider franchise. That took Apple’s Game of the Year for the iOS and also Best Mobile/Handheld game at The Game Awards 2015. The game was also ported to PS4 and Vita.

Deus Ex Go launched in August 2016 and while it didn’t fare as well in critical praise, most reviews said it continued the aesthetic and high standards introduced by its two predecessors.

Square Enix Montreal has also developed 2014’s Hitman Sniper, another mobile title, and Naud said the studio will continue to make mobile games, but it will be looking to new concepts as the Go series is retired.