OSRS Prayer: Ectofuntus vs Chaos Altar Guide

Game screenshots and facts are cited from the Old School RuneScape Wiki (strategy, equipment, drops, and related pages). Writing is original editorial, not a copy of the wiki article.

Prayer is one of Old School RuneScape’s most expensive buyable skills, and every bone you waste feels like gp down the drain. Two methods dominate the conversation when players want to stretch their bank: the Wilderness Chaos Temple altar and the Ectofuntus bone grinder. This guide uses facts from the official wiki to break down bone consumption, XP multipliers, and time per inventory, so you can pick the method that fits your account, risk tolerance, and budget.

Quick spoiler: the Chaos altar wins for most players on average bone efficiency because of its 50% bone-saving effect, but it sits deep in the Wilderness. The Ectofuntus is safer but slower. We will also cover when buying gold or a service is the honest shortcut, not a cheat.

Chaos Altar Basics: Where, How, and Why It Works

The Chaos Temple is a church in level 38 Wilderness, west of the Lava Maze. Members can offer bones on the Chaos Altar inside, gaining 3.5x the normal burying XP per bone — the same bonus as a gilded altar with both burners lit. But the altar has a powerful twist: every bone offered has a 50% chance to not be consumed. This can trigger repeatedly for the same bone, meaning that on average each bone you bring gives you the XP of two offerings, resulting in an effective 7x the normal burying experience per physical bone.

That makes the Chaos altar far more bone-efficient than a gilded altar. In fact, players who buy 53% of the bones they would need at a gilded altar have about a 97% chance to reach their goal, thanks to the saves. If you also wear Zealot’s robes, the save chance becomes 52.5%, pushing the effective multiplier to 7.37x normal burying XP per bone. The message “The Dark Lord spares your sacrifice but still rewards you for your efforts” will appear when a bone is saved.

Transport options include a burning amulet teleport to the Lava Maze and running south-west, Ghorrock Teleport (96 Magic), Cemetery Teleport (71 Magic on Arceuus), or an obelisk in your player-owned house. With the Hard Wilderness Diary complete, any obelisk can send you to level 44 Wilderness for a short run south. The altar also recharges prayer points, so you can keep Protect from Magic and Augury up while offering bones.

A Wine of Zamorak spawns on a table inside the hut, and with the Hard Wilderness Diary you receive it in noted form. The wine respawns approximately every 20 seconds, which is useful for the suicide method. An Elder Chaos druid inside can un-note any bones for 50 coins each, allowing long stays at the altar if you are willing to risk noted bones.

---

Ectofuntus Basics: The Safe, Slow Alternative

The Ectofuntus method is often mentioned as a way to train Prayer without entering the Wilderness. It uses the bone grinder to turn bones into bonemeal, which is then offered with a bucket of slime at the Ectofuntus. The Ectofuntus rewards a higher per-bone multiplier than a gilded altar, but it does not have the Chaos altar’s 50% bone-saving effect.

Because the research pack for this guide focuses on the Chaos Temple and the general pay-to-play Prayer training page, and the full Ectofuntus section was not included in the supplied excerpts, you should confirm the exact multiplier, inventory cycle time, and any diary or quest bonuses on the Ectofuntus wiki page before committing to a large bone purchase. In general, Ectofuntus is safer and more AFK between runs, but far slower per inventory because you must collect slime, grind bones, and worship at a more remote location.

---

Requirements and Unlocks for Both Methods

Early Prayer levels can be skipped with quests. Completing The Restless Ghost, Priest in Peril, Recruitment Drive, and Holy Grail grants a total of 14,531 Prayer experience, taking you from level 1 to 30. Spirits of the Elid gives another 8,000 Prayer experience with more requirements. Level 43 unlocks all protection prayers, level 77 unlocks all prayers, and level 85 completes all Achievement Diaries.

---

Bone Consumption and XP Multipliers: The Real Comparison

The table below compares the three main offering methods using the facts available in the research. The Ectofuntus row is intentionally left with “verify on wiki” because the supplied research did not include its exact current values; do not plan a large buy based on old figures.

Method	XP per bone (relative to bury)	Bone save?	Risk	Time per inventory	Attention
Gilded altar (POH, both burners)	350%	No	None (safe)	Fast, house tabs	Low-medium
Chaos Temple altar	700% average (3.5x per offering, 50% save)	Yes, 50% per offering (52.5% with Zealot’s robes)	High (Wilderness multi)	Fast if using suicide method; medium otherwise	High (PKer awareness)
Ectofuntus	Check Ectofuntus wiki page for current multiplier	No	None (safe)	Slow, multiple steps	Low-medium

The Chaos altar’s bone-saving effect is the key difference: you effectively need only about half the bones compared with a gilded altar for the same XP, assuming average luck. That lower bone consumption often outweighs the slower run, especially for expensive bones like dragon or superior dragon bones.

---

Time Per Inventory: Chaos Altar vs Ectofuntus

Chaos altar inventory times depend on your strategy. The fastest method is to bring an inventory of bones, offer them, then suicide to the Wine of Zamorak or let the Chaos Fanatic kill you, and respawn at a bank. With respawn points at Ferox Enclave or Edgeville (each costing 5,000,000 coins to unlock) or on PvP worlds with a bank chest next to respawn, you can complete a full cycle in under a couple of minutes, including travel. Bringing noted bones and using the Elder Chaos druid to un-note them for 50 coins per bone keeps you at the altar longer but increases risk.

The Ectofuntus requires multiple stops: collect slime, grind bones, then worship. Each stop adds time, and the inventory cannot be processed as a single quick click at one altar. Even with the Ectophial teleport, expect significantly more minutes per inventory than the Chaos altar. If you value time over safety, the Chaos altar is usually the better choice.

For the suicide method, lower your Hitpoints to 1 using a locator orb, dwarven rock cake, or enchanted symbol, then click the Wine of Zamorak. Alternatively, let the Chaos Fanatic kill you. Respawn at the nearest bank and repeat. Wearing Zealot’s robes works well here: they go to your gravestone on death, so you can loot them on the next trip and still benefit from the bone save.

---

Risk Management in the Wilderness

There are three common strategies:

• Planning to die: Take bones, teleport to the Wilderness, run to the altar, offer bones, lower HP with a locator orb or rock cake, then suicide on the Wine of Zamorak. Respawn at Ferox Enclave or Edgeville and bank. Wear Zealot’s robes if you have them; they go to your gravestone on death, so you can loot them on the next trip.
• Logging out: Keep the logout menu open and be ready to hop worlds when a PKer appears. This wastes time but avoids death.
• Bringing noted bones: Use the Elder Chaos druid to un-note bones for 50 gp each. This keeps you at the altar for long periods but makes you a big target. Only do this on quiet worlds or with a team.

Remember that the altar can recharge your prayer points, so keep Protect from Magic and Augury up while offering bones, and pray at the altar as needed.

---

Common Mistakes That Burn Bones and Gold

• Buying too few bones for the Chaos altar because you assume perfect 50% saves. Buy 53% of the bones you would need at a gilded altar to have a ~97% chance of reaching your goal; any less and you risk falling short.
• Ignoring the Zealot’s robes. The full set gives a 52.5% save chance at the Chaos altar (from the 50% altar roll and the robe roll), effectively increasing your bone value. If you already have the robes, use them at the Chaos altar even if it means looting your gravestone each trip.
• Using the Ectofuntus for expensive bones without checking its actual multiplier. Some players assume Ectofuntus is always better than gilded, but the Chaos altar’s average effective multiplier is higher. Verify the Ectofuntus rate before you buy.
• Forgetting to recharge prayer at the altar. You can use Protect from Magic and Augury while offering, but if you run out of prayer you will be vulnerable. Recharge at the altar itself.

---

When Buying Gold or a Boost Is the Honest Shortcut

Prayer is expensive. Even with the Chaos altar saving bones, reaching 70, 77, or 99 Prayer still costs millions of gp in bones. If you do not have a large cash stack, buying OSRS gold from a trusted marketplace can be the fastest way to fund your training without spending days making money first. Alternatively, if you would rather not click through thousands of bones, a prayer training service can handle the grind while you are away — as long as you choose a reputable seller and understand the risks of account sharing.

For players who want to see current gold prices, check the live rates. But remember: no service can make up for bad planning. Use the bone calculator on the wiki, decide on your method, and only then buy supplies or a boost.

View live gold rates

---

Practical Next Steps

1. Decide your Prayer goal: 43 for protection prayers, 70 for piety, 77 for augury/rigour, or 85 for diaries.
2. Calculate the bones needed using the wiki’s Prayer calculator, adjusting for Chaos altar average or Ectofuntus multiplier (verify the latter).
3. If using Chaos altar, unlock a good respawn point or use PvP worlds for faster banking.
4. Buy bones (plus extra for bad luck at Chaos altar) or buy gold to fund the supplies.
5. Train using the method that matches your risk tolerance and time budget.

---

Sources

• Pay-to-play Prayer training - OSRS Wiki
• Chaos Temple (church) - OSRS Wiki