The 2000s were the dawn of online gaming. It was also a time that brought with it changes to first-person shooters, massive open-world sandboxes, and the explosion of online RPGs. If you were gaming then, you probably sunk countless hours into a few of these classic PC games.

RuneScape
RuneScape first came onto the scene in 2001, and has since rolled out several major versions over the years. Players have recorded logging hundreds of hours of skilling, questing, and exploration across Gielinor. One of the most popular versions of the game has been Old School RuneScape, which was modeled after the 2007 version of the game.

Gold is a huge part of RuneScape, with players spending gold on everything from armor and weapons to jewelry, capes, and skilling supplies. And that’s why RuneScape 2007 gold still has value today.

World of Warcraft
World of Warcraft became one of the most popular MMORPGs of all time, since its launch in 2004. Players spent their time exploring Azeroth, joining guilds, picking up professions, running raids and PvP, and trading on the Auction House for better gear.

And, of course, players needed gold for almost everything, including repairs, materials, and mounts. That hasn’t changed with WoW: Forever. Players on the hunt for WoW Forever gold can check out listings on marketplaces like PlayerAuctions.

Diablo II
Released in 2000, Diablo II had players chasing after monsters, collecting loot, tweaking their builds, and hunting for better loot drops.

Different classes made repeat playthroughs fun. Sure, randomized gear meant finding the perfect weapon or armor piece could take forever, but that was part of the fun.

The Elder Scrolls III: Morrowind
Morrowind arrived in 2002 and had very little hand-holding involved. Players were dropped into Vvardenfell without clear directions, no glowing trail to follow, and no giant marker floating above their destination. You just had to figure things out yourself.

It was a real adventure. The strange world, the factions, the dialogue, and character building made the game feel unique. It could be confusing, and occasionally broken, but that was ok because it was part of the charm.

Half-Life 2
Half-Life 2 was definitely something new in 2004. The graphics were fresh, and City 17 left a whole city for players to roam rather than the old corridors seen in older shooters.

The Gravity Gun was also novel and new, allowing players to pick up objects and fire them at enemies. Half-Life 2 wasn’t just a great shooter. It made PC gaming feel like it had jumped forward several years overnight.

BioShock
BioShock landed in 2007 and introduced players to the dystopian underwater city of Rapture. A first-person shooter, BioShock mixed in elements of fun with superhuman powers through the use of Plasmids.

Besides the cool powers that players could unlock if they so chose, the setting is what really stuck with players. Walking through the abandoned halls of the underwater city added to its spookiness.

Portal
Also arriving in 2007, Portal turned a simple puzzle mechanic into one of the most memorable games of the decade. Players were equipped with a portal gun: one doorway in, another out. Sounds simple enough, but each round became more and more challenging.

Compared to the other games on the list, Portal was pretty short. But that didn’t make it any less fun. GLaDOS, the puzzles, and a certain song at the end were enough to make it unforgettable.