Akana is a collaborative worldbuilding project--what happens when a bunch of language enthusiasts get together and decide to create a planet. I have a special fondness for it; some of my best conlanging memories come from relays, and I'm especially fond of one of my entries to the second Cursed Relay, namely Teyetáti. I also am particularly active on the southern polar continent, Njemnetsa, having submitted a proposal for a language family there that ended up becoming Macro-K!asic.
Ornitic, Ronquian, Southern, and T1 were collaborative efforts to which I contributed (to various degrees); Macro-K!asic and the unnamed language families (a triconsonantal group and a language family for the fifth Cursed Relay) are wholly mine own.