Jagex have released Old School RuneScape on Steam. I suppose it’s not really that significant to existing OSRS players who probably already use Runelite. But this release may help the game reach a wider audience.
There is nothing really new in terms of content but they’ve added 20 achievements, 15 trading cards, 5 emoticons, and 6 badges on Steam.
https://secure.runescape.com/m=news/old-school-runescape-on-steam—out-now?oldschool=1
https://store.steampowered.com/app/1343370/Old_School_RuneScape/