Daily. You can also force one reset for this activity per day by using a .
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Varies between 20 locations all across Runescape every hour.
Find and enter the Sinkhole.
To start this game, you will locate a Sinkhole. The easiest way to find where one will spawn is to head over to the Daemonheim camp and speak to Talsar. He will give information about the time and location of the next Sinkhole, as well as offer a teleport if the sinkhole is near emerging. This teleport can be used three times per day, if you have run out of teleports you can ask Talsar where the current sinkhole will emerge and make your own way there.
Note: Sinkhole locations changes every hour and the game itself can only be played twice per day. Games start at 30 minutes past every hour, on all worlds.
Sinkholes are usually played on the Sinkhole dedicated world, being world 134. It is best to do sinkholes on that world, due to the increased amount of players for an easier and quicker time finding games.
Note: The world is P2P, meaning you must be a member to enter the world. There is currently no F2P world, for free players.
| Map | Hint | Location |
| "Near a dungeon entrance in the jungle." | West of Brimhaven. | |
 | "A good vacation spot." | North of Oo'glog on the east coast. |
| "Beside a guild for archers." | north side of Ranging guild. | |
 | "Between a mountain and a place of peace." "The prayer of Saradomin monks." | West of the Edgeville Monastery. |
 | "The fisherman's home." "North of a fishing village." | North side of Catherby. |
 | "North of the White Knight city." "The white knights." | North of Falador near the Gamers Grotto entrance. |
 | "Close to a lighthouse." | West of Rellekka, north of Lighthouse bridge shortcut. |
| "In the midst of a battle between humans and gnomes." | North of the Battlefield. | |
| "Near an altar besides a ghostly town." | North-west of the Ectofunctus alter in Port Phasmatys. | |
 | "Near an arena, beside a port town." | Fight Arena, near the Trawler minigame. |
| "Place where several famous brothers are." | At the entrance to the Barrows. | |
 | "In a swamps south of a town." | South of Lumbridge castle. |
 | "Near a flax field where the future is seen." | South east of Seers Village near the Flax field. |
| "Town of old Darkness." | Draynor Village. | |
| "Near a slayer cave east of my home." | South east of Rellekka, at the Fremennik Slayer Dungeon. | |
| "Near a town of people who aren't who they seem." | North entrance to Canifis near the Slayer master. | |
 | "Where barbarians train for agility." | Right behind the Barbarian assault minigame at the Barbarian Outpost. |
| "Besides a dungeon entrance, south of a port town." | Just north of Mudskipper Point near the entrance to the Asgarnian Ice Dungeon. | |
 | "Near a cave entrance in a druidic town." | By the Lady of the Lake on the south side of Taverly. |
| "South of a fishing colony, where hunters prey." | The summoning obelisk, just to the south of Piscatoris Fishing Colony. | |
 | "North of a desert town." "Where the sand start." | North of Al Kharid, up past the Fire Alter. |
The sinkhole will be ready when a door that looks like a Resource dungeon spawns, entering this door will take you to the start room of the sinkhole. Here you will meet with Gorajo hoardstalker, he will give you an explanation on how to play the game. Before you can begin you must bank every thing you are carrying, even the usual items that you can take into normal dungeons must be banked. Once you are ready you can speak with Gorajo hoardstalker and tell him you are ready, and he will find a group for you.
When a group has been found for you, all players are teleported into a dungeon, these dungeons have the same look and feel of a normal dungeon in the dungeoneering skill. You will appear in the starting room along with your group, Gorajo hoardstalker will also be in the room, sitting in the middle.
Players can choose one attack style from tables around the room (Magic, Melee or Ranged) upon choosing your style you will automatically be equipped with gear of your level. Also available to you is food from the crates in the center of the room.
Note: You only need to choose a combat style once as it will remember your choice from the previous sinkhole, so there is no need to run to the tables unless you wish to change styles.
The goal of this dungeon is to gain points, to earn points you must collect and deposit resources and totems scattered throughout the dungeon, unlike normal dungeons there will only be one type of resource that is random for every sinkhole.
| Item | Location | Points per Item |
| Exploration Totem | One can be found on the floor of every room. | 30 |
| Combat Totem | Dropped by every defeated monster. | 20 |
| Resources | Gathered from various nodes through out the dungeon, can either be:
| 10 |
You can use the objective tracker in the top left of the screen to see what resources and totems are still required, once a target is met you do not gain any points for depositing them.
The game will end when all 3 objectives are met or the game time expires.
While you are in the sinkhole gathering resources and totems you will come across cards, these can be obtained from monster kills, chests, collecting a resource or on the floor under an exploration totem. Cards are used in the treasure room at the end of the game, you can only carry a maximum of five cards at a time.
| Image | Name | Effect |
 | Beguiling smoke devil | Scrambles all the chests once per game. |
 | Cloning mosquito | Clones the chest of the previous ranked player. Note: If this card is used while you are in last place, it will have no effect. |
 | Consistent yak | You will receive a medium lamp as reward no matter what other cards are played. |
 | Preening ibis | Adds a piece of the Hoardstalker outfit to your chest. |
 | Protecting titan | Protects your chest from being moved by another players card, once per game. |
 | Reversing phoenix | Cancels the previous card that was used once per game. |
 | Scavenging meerkat | Will add a medium lamp to your chest but every player still to play will receive an extra card. |
 | Thieving locust | Trade your chest with the player ranked last once per game. |
 | Trading leech | Trade your chest with the previous ranked player once per game. Note: If this card is used while you are in last place, it will have no effect. |
 | Trading mantis | Trades your chest with the next ranked player once per game. Note: If this card is used while you are in first place, it will have no effect. |
 | Whimsical bunyip | Randomly generates a card for you which will be played immediately once per game. |
In addition to the reward you end up with at the end of the game after all cards have been played in the treasure room, you also gain combat and resource gathering xp through out the dungeon.
