Stable income: Somewhat stable

Video game asset creation can be a moderately stable side hustle for earning monthly income. Based on online research and my own experience, many people can consistently earn from this, but there can be fluctuations in demand and income levels. If your best friend decided to pursue this full-time, I would say it's a decent option with a reasonable level of stability. I'd rate it a 3 out of 5 because while there is a decent baseline for income, occasional fluctuations in demand and earnings make it less predictable than a traditional job.