There are several side quests to find as you progress through the Once Human storyline. These side quests are a great way to unlock additional gear and companions, but they also provide large amounts of experience points. Some are complicated, such as the Happy Birthday side quest.

The Happy Birthday side quest is a small event that you can find while exploring the Chalk Peak region in Once Human. It’s a heavily guarded side quest that takes a bit of time to reach, but you’ll have to solve a small puzzle once you’re there. There’s one direct way to do it, and we can help make it a lot easier. Here’s what you need to know about how to complete Happy Birthday in Once Human.

The Happy Birthday quest can be found in the Chalk Peak region, on the southern side, next to the Hilly Homestead monument. When you arrive, you can expect to encounter several Rosetta agents guarding the exterior of the house. You will need to make your way through the building to begin the quest, and you will need to search the house for clues to complete the quest. In the future, you will need to search for Tungsten and Gold, important materials for future equipment projects.

I recommend focusing on the Rosetta agents before starting the quest. Many of the NPCs are standard units, but an elite unit spawns regularly outside the house at level 32. If your character is lower than this level, expect the encounter to be challenging. The real problem is how often they spawn. They seem to respawn within five minutes or less of being defeated, which can be frustrating. Taking them out once should leave you free to focus on the Happy Birthday quest in Once Human. Act quickly, though, before they spawn again.