Prayer can be one of the most expensive skills to train in RuneScape. There are a number of minigames that can be played that can, either directly or indirectly, give a reward which can train and reduce the cost of Prayer. The most beneficial are Conquest, Pest Control, Shades of Mort'ton and Soul Wars.
Void Knight Outpost
Conquest is a turn based strategy board game that can be played at the Void Knight Outpost. The Outpost can be reached by boat by talking to the Void Knight Squire in Part Sarim. The game has some similarities to chess. Two players are required to play the game, which involves moving pieces on a board in order to defeat the other player. Each piece has different strengths and weaknesses, and there are also different Commands available, which can be used to help your units or hinder the other players'.
Both players will receive a reward of Void Knight Commendation Points for playing, with the winner sometimes getting more, although if the game is ended too early, neither player will gain any points. Players cannot have more than 500 points at any time.
Commendation Points can be spent on a number of things, including Void Knight Equipment and experience in combat skills excluding Summoning. The amount of experience earned is dependent on the level of the skill being trained.
The official worlds for Conquest are 53, 69 and 115.
The minigame is safe; when a player dies they respawn on the lander that ferried them to the island, with full health and all their items.
As with Conquest, Void Knight Commendation Points can be earned from playing Pest Control, which can be spent the same way. 2 points are earned for winning a game on the Novice boat, 3 for Intermediate and 4 for the Expert one.
The official worlds for Pest Control are the same as those for Conquest, 53, 69 and 115.
In order to play this minigame, players must have completed the Shades of Mort'ton quest. The minigame is played to make Sacred oil.
Serum 207 or Serum 208 an Afflicted in Mort'ton. The Olive oil can be decanted into 4 doses, in order to maximise the use of inventory space.
Once the Sacred oil has been made, it can then be used on the relevant logs to convert them into Pyre logs.
It is possible to buy Sacred oil, Pyre logs and Shade remains from the Grand Exchange and, should they be available to buy and the rewards be of enough value, it may still be cost effective and profitable if some or all of the required items are purchased.
Both the Shades of Mort'ton minigame and the Shade burning are much easier if the bank in Burgh de Rott, fixed in the quest In Aid of the Myreque, is available.
The official world for the minigame is World 88. The minigame is impossible to successfully play without other players.
Once Shade remains and suitable Pyre logs have been obtained, the remains can then be be burnt on a funeral pyre, of which there are many around Mort'ton. First the Pyre logs are placed on the Pyre, then the Shade remains and finally the pyre is lit. The player will then receive Prayer and Firemaking experience, and a reward of either coins or a Shade key.
Loar remains when burnt give 33 Prayer experience, and need to be burned on on Pyre logs or better, which are made with 2 doses of Sacred oil and Logs, and require level 5 Firemaking.
Phrin remains when burnt give 46.5 Prayer experience, and need to be burned on on Pyre logs or better, which are made with 2 doses of Sacred oil and Logs, and require level 5 Firemaking.
Riyl remains when burnt give 59.5 Prayer experience, and need to be burned on Willow pyre logs or better, which are made with 3 doses of Sacred oil and Willow logs and require level 35 Firemaking.
Asyn remains when burnt give 82.5 Prayer experience, and need to be burned on Eucalyptus pyre logs or better, which are made with 4 doses of Sacred oil and Eucalyptus logs and level 63 Firemaking.
Fiyr remains when burnt give 100 Prayer experience, and need to be burned on Magic pyre logs, which are made with 4 doses of Sacred oil and Magic logs and level 80 Firemaking.
To get to the higher level Shades in the Shade Catacombs requires a suitable colour Shade key, which can only be obtained by burning Shade remains. To save time, it can be advisable to buy several Shade remains of the highest level that can be burned to get a Shade key to gain access to the same area of the Catacombs.
Vyrewatch, and Vyrelords and Vyreladies, which can be encountered east of Burgh de Rott after the quest Legacy of Seergaze, in Meiyerditch, in Darkmeyer and on the Temple Trekking and Burg de Rott Ramble activities, also after Legacy of Seergaze, can only be slain with an Ivandis flail or Blisterwood weapons, so they require at least the Legacy of Seergaze quest to be completed in order to kill them. Once killed, they always drop Vyre corpses.
Unlike Shade remains, Vyre corpses are not tradeable, so Vyrewatch, Vyrelords and Vyreladies will need to be killed by the player to get the corpses.
Two teams of players fight to control the Soul Obelisk in the centre of the map, in order to use Soul fragments on it to decrease the opposing team's Avatar's Slayer level. The object is to kill the opposing Avatar; the Avatar can only be attacked by someone with a Slayer level higher than the Avatar's Slayer level.
Zeal can be exchanged for experience in a number of skills, including Prayer. The amount of experience gained is dependant on the level of the skill being trained.
The official worlds for Soul Wars are 44, 79 and 97.