Horizon Zero Dawn: 10 Things A Prequel/Sequel Must Address
1. More In-Depth & Rewarding Side Quests
While the Main Quests and explorations of this vast open world were the main reasons why Horizon Zero Dawn was so successful, the Side Quests are where the gamer had every right to lose his or her interest.
Apart from a few which were interesting (like A Moment's Peace) and allowed you to learn more about this virtual world of the future, most were simply errands involving bigger, harder to kill machines.
This could still be ignored initially, when taking into account the coolness and newness of the world, but probably won't fly the second time around. The beauty of Horizon's graphics and the creativity involved in the game's machine design will not make up for more boring quests involving killing a giant creature and bringing back its heart or lens.