Then you're gonna need to get on the social media game. Do you have a Twitter account? Facebook? Tumblr? If you do then you're going to have to be active. A LOT more active. Most of your patrons will come from social media sites and if they see that you're someone that interacts and talk to people, and aren't a total douche, then they're likely to check out your page and see what's it's all about. This segways nicely into: Presentation!
Presentation and promotion is key to getting people to become your patron. I can't tell you how many well presented pages that have drawn me in and made me want to throw money at them. And being transparent and doing indirect promotions can help keep you from blending in with the crowd. Thanking a supporter on their social media, promoting the events around a campaign, like promoting your development creation livestream instead of the ******* account, showing off the rewards patrons are receiving, and post pictures of the rewards and let people know how excited you are to share them with supporters. Be excited for the special things being done instead of asking for the money all the time. It's like watching a youtuber, People who don't do the "LIKE, SUBSCRIBE, COMMENT" are more likely to get a like, subscribers, and comments then those that blast it at the middle or end of their videos. A good page setup can go a long way and help you stand out from the thousands of others on the site. Now I know you might say you don't have the money or skills to make banners and design menus, but there are people that can do that and for relatively cheap if you look in the right places. You've gotta spend money to make money. Speaking of money...
Reward tiers! This is a corner stone of ******* and what will fully determine if someone will donate to your cause. For artists, musicians, writers, and video content creators it's pretty easy to set up monthly goals: early access to final products, access to WIPs, personal streams, shoutouts, or just flat out easy access to the creator! But it's a little harder for people like game devs, because our stuff isn't something that you can churn out in a weekend. So you'll have to get a bit more creative with the rewards: Demos, feedback, allowing patrons to name NPCs, having dev streams, maybe even rewarding a full copy of the game to people who pay a certain amount or have been an patron backer for awhile. I would suggest you look at other game dev Patreons and see what they're doing to getting a clearer picture.
This is all the basic stuff that are the corner stones of making a *******. I hope this was helpful!