Some examples that come to mind:

game announcement release sales
Duke Nukem Forever 1997 2011 (14 years later!) > 2M
Final Fantasy XV (originally versus XIII) 2006 2016 (10 years later) > 6.5M
Team Fortress 2 1998 2007 (9 years later) F2P (>40M owners)
The Last Guardian (project Trico) 2008 2016 (8 years later) > 1.2M
Zelda: Breath of the Wild 2013 2017 (4 years later) > 5.6M so far
Star Citizen 2012 ? (no firm release date yet) 1.9M backers

Seems the sales are mostly fine.

Last edited by Mnementh - on 03 January 2018

3DS-FC: 4511-1768-7903 (Mii-Name: Mnementh), Nintendo-Network-ID: Mnementh, Switch: SW-7706-3819-9381 (Mnementh)

my greatest games: 2017, 2018, 2019

Predictions: Switch / Switch vs. XB1 in the US / Three Houses first quarter