2014 was the year we were all taking about the explosive growth of mobile messaging channels such as LINE, WhatsApp, WeChat and Kakao.
Since then, however, the market has fragmented with new networks such as Palringo being more niche and focused.
And that's certainly the case with Discord, the PC/mobile voice/chat messaging app that's designed for hardcore PC gamers.
It's from Hammer & Chisel, the company set up by Jason Citron, the co-founder of mobile social gaming network OpenFeint.
And it's just announced a new funding round of almost $20 million.
Lead by new investor Greylock, the round was supported by existing investors Tencent, Benchmark, and YouWeb.
The 18-strong San Francisco-based team says it will use the cash to expand its headcount and expand its technology.
The round comes as Discord says it's seeing growth of one million users a month (currently around 3 million users in total), with over 300 million messages shared a month.