Nowadays there are loads of ways to make a living from gaming and you don't even have to be that good at it.
Once you have a unique thing to offer your golden! i.e personality, gaming abilities etc. (A good player or bad player is better than an average player)
If you record your gaming via Twitch or YouTube:
- Advertising income
- followers from gameplay. (take viewers on a journey to learn/play/cheat the game)
- Use Patreon or many other crowd funding alternatives. (monthly donations from fans)
- Review new games then promote them with an affiliate link.
- Buy/sell weapons on Steam and demo the game ONLY using the weapon your selling.
- Wear your own brand of clothing when recording gameplay such as a slogan T-shirt, baseball cap etc and offer the same items for sale.
- Live streaming via twitch and Youtube comment charges.
- Have your own affiliate advertising in videos you upload.
- contact your followers via email to promote new games and accessories.
- use other social platforms for all the above FB, Twitter, Pinterest and other video sites.
- Have your own website with VIP members area for paying subscribers who see new videos 7 days before everyone else plus exclusive content.
- Also, on your website have your own advertising, affiliate links, dropship products, own branded products etc.
- Sell compilation videos with behind the scenes footage when you have enough followers.
- When you have over 50,000 followers find yourself some sponsors.
- Work alongside other Gamers who have their own followers to share customers.
- Have a gaming competition that requires a user/fan/follower to take action on something.
- Finally, upload your videos and blog posts on Steem.
I think gaming is a great way to earn an income if your enjoy playing and you have the confidence to record your gameplay. I imagine there is loads more you could do as this list only took me 5mins.