2011 marked the 12^th anniversary of the formation of Jagex, and the 10^th anniversary of the release of RuneScape.

January

• 4 January:
  • 10th anniversary cakes and candles are added.
  • King of the Dwarves is released.
• 10 January: Nex is released, along with the God Wars Dungeon expansion, featuring the Ancient Prison.
• 14 January: End of the Vote for "Bring back The Wilderness and Free-Trade" referendum.
• 17 January:
  • The Hati wolf is released.
  • The first server blackout of 2011 occurs.

February

• 1 February: The Wilderness and Free Trade was returned into the game.
• 9 February: The Prisoner of Glouphrie quest is released.
  • Gnomes receive a graphical update.
  • The option to remove the Profanity Filter is added.
• 21 February: WildyWyrms are added and drops from Nex are also updated.

March

• 1 March: The Elemental Workshop IV quest is released.
• 8 March: The Artisan's Workshop is released.
• 11 March: The first Bonus XP Weekend of 2011 begins.
• 11 March: Clans are challenged in the Bonus XP Weekend.
• 15 March: The Ring of Wealth, Trolls and Dungeoneering are updated.
• 28 March: A Clockwork Syringe is released.

April

• 4 April: The Livid Farm is released.
• 7 April: The Skilling Ladder's Beta version is released.
• 11 April: The third server blackout of 2011 occurs.
• 12 April: The Clan Camp is released.
  • Many new clan features are released, along with the Clan cape and Clan vexillum, and an updated Clan chat.
• 17 April: Clan Hiscore Maintenance is preformed.
• 19 April: the 2011 Easter event is released.

May

• 3 May: The Capes of Distinction are released.
• 16 May: The Lava Flow Mine is released.
• 25 May: Death hats are released.

June

• 1 June: The Fremennik Sagas are released.
• 7 June: The Deadliest Catch quest is released.
• 14 June: The teaser for Kethsi is released.
• 28 June: The Members Loyalty Programme is released.
  • The Aura slot is released.
  • New graphics for the Emote icons in-game are released.

July

• 1 July: Behind the Scenes information released.
• 5 July: Salt in the Wound member's quest released.
• 7 July: The fourth server blackout of 2011 occurs.
• 12 July: Jadinko Lair and Whip Vine released.
• 26 July: Clan Citadels are released.

August

• 17 August: Temple Trekking is revamped.
• 18 August: Refer a Friend Programme is introduced.
• 23 August: New rewards are added to many older minigames.
• 31 August: The Branches of Darkmeyer quest is released.

September

• 6 September: Prayer Renewal Potion is introduced.
• 9 September: The second Bonus XP Weekend of 2011 occurs.
• 14 September: The Ritual of the Mahjarrat quest is released.
• 21 September: Members Loyalty Programme enhanced with new auras, emotes and other options.

October

• 4 October: Chat Changes & Camera Controls introduced.
• 12 October: Talent Scouts arrived along with The Pit update.
• 14 October: Zombie Outbreak for Hallowe'en.
• 17 October: 2011 Hallowe'en event is released along with the wicked hoods.
• 25 October: Bot Nuke Day.
• 29 October and 30 October: The second real-world RuneFest event.

November

• 1 November: Dominion Tower is introduced.
• 7 November: One Piercing Note quest is released introducing new member's only area.
• 22 November: New Website design and logo released, 2011 Thanksgiving event released as well as new anti-gold botting measurements.
• 28 November: Polypore Dungeon is released, bringing with it an array of new Slayer monsters and Magic based armour.

December

• 6 December: Batch 3 of Loyalty Rewards is released along with the toolbelt and money pouch. 30 more bank space is also released for members.
• 13 December: The Flash Powder Factory is released, along with new Chatboxes and an extensive Wilderness graphical update.
• 20 December: The 2011 Christmas event is released.