Awesome, but not a reason to go “short” anymore. You’re building a new house, so the key word is “More”. If it’s new construction, switching to two 20 amp circuits isn’t much more expensive than a single 15 amp one. Different breakers and different wires, but the same install cost really in new construction. If you have space on the end of your room, an extra one there for future expansion.

You’re not new, so I don’t know if you would do a massive expansion of games. But allowing for it is always good in new construction. Same for data and televisions. Wire in cables into the walls for everything. Speakers, TVs, data in any location that could fit a TV. You don’t even need to pull them out of the wall, just have them there for future expansion and changes. It’s cheap insurance for your future self.

And really, when I did my basement I did this, and never regretted it. The extra power and outlets came in handy when I switched things a few years later.