The world of Gielinor is a realm of high medieval fantasy, quite welcoming to adventurers, with magic and gods a central part of life.
Type: Blossom
This is not a comprehensive list, but rather a selection of locales to suit various RP interests. Some more minor locations have been included over more major places in the interest of variety.
Burthorpe: A small town within the Kingdom of Asgarnia, one with its own military - the Burthorpe Imperial Guard - defending against aggression from trolls from the north. Notably, Burthorpe and its neighboring town Taverley to the south feature entry-level training for a wide range of adventuring skills, and form an excellent starting-out point for those just starting their story. More seasoned combatants can also find a good challenge in helping to fend off the latest troll incursion.
Varrock: The economic mecca of Gielinor. Situated along the northern border of the Kingdom of Misthalin, it features the Grand Exchange where a great many people come to trade their wares. Outside of buying and selling, the Varrock Museum is always on the lookout for new artifacts to display - and will *certainly* be interested in those from other worlds entirely. Bordering Varrock to the north is the hostile Wilderness, which poses a consistent threat that needs to be guarded against.
Wilderness: A land formerly known as the vibrant Forinthry, scorched beyond recognition into the hostile hellscape it now is. This place is outside anyone's rule, the volcanic and infertile grounds hosting myriad monsters and dangers that only outlaws and extremely powerful beings would dare visit. There's a few rogue outposts about, with bandits and outcast knights setting up camp in between pillagings.
Karamja: a jungly island with its own independent tribal natives. The small town of Brimhaven enjoys established trade with the mainland, hosting a mixed population (and a pirate outpost). Deeper in the jungle, the influences of modern life have a much less notable impact - the natives there are very much your spear-hunting types, relying on wits and skill to survive. Parts of the island remain uncharted - a risky yet potentially rewarding venture for the willing or bored.