To get started as a game tester, sign up with a reputable network such as Keywords Studio, whose Global Beta Test Network (GBTN) helps game developers push their products to the limit and ensure they go to market with as few bugs as possible. GBTN’s tests typically involve dozens to hundreds of testers around the world running simultaneous tests on different aspects of clients’ games. Most tests are time-limited, project-based affairs. Pay varies but typically ranges from $20 to $50 per hour. Diligent, skilled testers who work part-time can earn $10,000 to $20,000 per year; testers who work at or near full time can easily exceed $50,000 per year.
That would be retail arbitrage, one of the top careers for self-employed introverts. Practitioners of retail arbitrage buy products for pennies on the dollar at auctions, from online retailers, even at garage and yard sales, and then sell them online at sometimes-substantial markups. Fulfillment by Amazon (FBA) is the most popular platform for U.S. sellers, but other options work too. Learn the FBA ropes with this low-cost Udemy course.
Craigslist. Craigslist is the scrappiest of the major online resale options. Its major perk is its enticing profit potential, thanks to the total lack of listing and selling fees for most items. The disadvantages are many and include potential safety risks and higher chances of nonpayment. If you do choose Craigslist, keep your wits about you and use the buddy system. Internet Marketer