I’m following with interest Radish and Raduel.
The first one started as an NFT but is now expanding in a whole ecosystem: they will have a DEX, a native game, a digital asset marketplace and more. This Twitter thread might give you an insight. If @mik or @Hanisome want to chime in, they might be able to give you more info 
Raduel is a 2D pixel MMORPG and might be the first game on Radix, so it’s worth keeping an eye on it! The developer, @Raduel often posts update on their Telegram on development and more.
There is also the Artistizen NFT Marketplace in the works, you can acquire $ART tokens by buying their NFTs. Read more here: https://www.artistizen.com/tokenomics.html
I’m sure there are a bunch of other interesting projects I forgot though!