RuneScape is a popular browser-based MMORPG. There is a free-to-play area, and a pay-to-play area, in which you must pay a monthly fee to access. In RuneScape, you adventure around doing quests, collecting gold (GP), training skills, and fighting.
Dan: How come you weren't on RS yesterday?
Don: I got bored of that game. I don't play anymore.
These are sites that have to do with RuneScape.
RoScripts is a programming website that has a bunch of useful scripts, hints, and tips for web developers.
Kevin: How did you make that script?
Victor: I didn't; I found it on RS.
These are sites that have to do with RoScripts.