Waaaay long time ago one of my school friends was both a videogame junkie and car guy. This was before ‘gaming chairs’ were really a thing, but his solution was to hit a scrap yard and salvage the most comfortable seat he could find from a junked car. He mounted that onto an office chair swivel base.

To date, the most comfortable “gaming” / office chair my butt has ever had the privilege to occupy.

I have no idea what a car seat would cost from a scrap yard, but if your the tinkery type and looking for a new project…