You can find multiple side quests as you make your way through the Once Human storyline. These side quests are a great way to unlock additional equipment and companions, but they also grant large amounts of experience points. Some of them are complicated, like the Happy Birthday side quest.
The Happy Birthday side quest is a minor event you can find while exploring the Chalk Peak region in Once Human. It’s a heavily guarded side quest that takes some time to reach, but you’ll have to solve a small puzzle when you get there. There’s one direct way to do this and we can help make it much easier. Here’s what you need to know about how to complete Happy Birthday in Once Human.