With a specific strategy and combination of relics, you can achieve endless invincibility and chests with Imp Contraptineer. Here’s how to do it!
- All Boneraise Lore meta upgrades to max level.
- All Heroic Force meta upgrades to max level.
- All Class Heritage meta upgrades for the Imp Contraptineer class.
- All of Goblusious‘s unlocks under “research powerful relics”.
It also assumes you have enough Gold Coins and Hero Souls to buy relics at the start of your run from the merchants, and to build contraptions in your chosen map as described in the Setup section. It’s possible you can still achieve the infinite without all of these things, but they will definitely make your life easier!
I wrote this guide playing on v31.6 of Boneraiser Minions. I wouldn’t be shocked if this strategy gets patched out eventually, so please be aware and check the relic, spell, and contraption behaviors on your version before attempting it for yourself!
As of time of writing, I have the top score on the starter map’s leaderboards (by a healthy margin!) using this strategy.
6 Treasured Chesty contraptions
A bunch of Banishments
Magnifying Glass at Level 3
With the above, we can do a lap around our Treasured Chesty contraptions, get at least one cast of Regrowth Returnal out of them, use it to regenerate all 6 chests, and remain invincible thanks to Bernard’s Watch, and pick up a ton of gems and relics for a truly absurd score.
Technically, this is not a perfect infinite: it’s possible to be offered no spell scrolls across multiple laps of treasure chests and eventually run out of Regrowth Returnal casts. However, once you have a full inventory of spell scrolls, the probability of this happening is about 0.0059% — and with the Magical Bum Bag relic, which we’re bound to obtain eventually from a treasure chest, the probability of whiffing from a full inventory of 5 spell scrolls falls all the way down to about 0.000046%! We can expect to complete over two million laps around our treasure chest farm before whiffing even once.
1. Lay out Contraptions: In Architect Mode, fill the chosen map with as many of the most expensive contraptions possible, from the bottom two rows of the menu. The Imp Contraptineer can sell these for Scrap once the run begins, so by filling the map with expensive ones we’ll have lots of Scrap right away to start building Treasured Chesty contraptions.
2. Attune Giga Banishments: Use your Giga Banishments to remove up to nine spells and relics from the pool of choices, boosting the odds of finding the ones we want. Remove whichever you like the least!
3. Pick the Imp Contraptineer class: This will let us get a maximum of 6 Treasured Chesty contraptions once the run begins.
Make your preparations, then begin the run! We’re offered two upgrades from the Blacksmith at the cost of Gold Coins, then one upgrade from the soul eater friendo at the cost of a Hero Soul. We can quickly reset the run (via the pause menu -> Quit -> Quick Restart) until we find what we want, namely:
1. Blacksmith relics: Look for two of the following: Watering Can, Enbanishment Scroll, Crooked Dice, Horoscope Charm, Sorcery Wand; as well as anything you find helpful to survive the start of a run. We’ll prefer relics that help set up the infinite (Enbanishment Scroll, Crooked Dice, Horoscope Charm) over ones that are helpful once it gets going (Skelly Key, Spring Sandals). Unfortunately, it does not seem to be possible to get Magnifying Glass here (I’ve never seen it be offered).
2. Soul Eater boon: Buy the Enbanishment Scroll if it’s offered, or re-roll for it. It’s offered often enough that you should be able to get it this way in the vast majority of your attempts.
If we got what we wanted, the run is now underway!
1. Cast your starting spell to get rid of it.
2. Run a lap around the map, using your unique Imp Contraptineer spell to sell all of your contraptions aside from the two starting Treasured Chesty ones. While you’re doing this, open the two starting treasure chests when you encounter them.
3. Buy as many Treasured Chesty contraptions as you can, placing them next to your two starting ones. You should have enough Scrap from selling to have 5 of them (out of 6 maximum) right away.
To make your life easier in the early game, you may want to spend some of the excess scrap on other contraptions to help you survive: I really like the Honeycomb Beehive, Bushy Fruit, and Blood Barrel contraptions for max health and Occult Hearts. This will slow you down towards your sixth Treasured Chesty, but in practice having all six is not especially important until the combo is well underway.
As far as I can tell, all Banishments are shared across relics and spells, so be sure to save them for spells by not using any on relics. However, you can freely re-roll relics to find the ones you’re looking for, which in the early game will be any that make it easier to assemble the combo and survive.
The timing of your first relic may vary depending on your chosen map, but generally you’ll get the first relic from the first wave of armed peasants, a little over a minute into the run. I recommend resetting the run if you’re not offered the Magnifying Glass, because it’s absolutely essential, as described below.
These are all the relics you should keep an eye out for, in (roughly) order of importance:
Aside from these, grab any relics that will help you survive and any others that contribute to the infinite (listed under “The Plan” above).
Once you have enough scrap (6750) for the final Treasured Chesty contraption, place it down near the others. The closer, the better: you want to be able to complete a lap collecting all treasure chests as quickly as possible.
Along with the relics mentioned in the prior section, and the relics mentioned under “The Plan” as essential to the infinite, you should watch for these relics in the mid-game:
Ethereal Shoes and Spring Sandals
Magical Bum Bag
You don’t need Bernard’s Watch straight away as long as you’re comfortably surviving, and once you get the infinite going you’ll be deluged in more relics than you know what to do with, so you don’t have to worry about having it straight away. Likewise, you can start with just a Level 1 Sorcery Wand, as long as you fully charge your casts.
You’ll know the infinite is underway after you do a lap of your treasure chests and grab 1 or more Regrowth Returnal spell scrolls, then grab more on your next lap, and more, until you have a full inventory of them. At that point, congrats: you did it! You can keep running laps and keep selecting all of the relics and boneraises you desire until you win the run or get completely and utterly bored in New Game Forever. With the Bonechemist’s Slab you’ll easily be getting 1-2 relics/boneraises/spells per in-game second, ensuring endless invincibility thanks to Bernard’s Watch.
I recommend running around opening all of the treasure chests without stopping (using the Skelly Key) so that your pickups don’t reach you until your lap is completed. You won’t be interrupted by the spell selection screen while you’re charging a spell, so if you immediately start charging Regrowth Returnal at the end of the lap, your pickups will wait patiently for you and you’ll get all the chests back and ready for another go before making your selections. This means that as long as you can complete a lap within 4 in-game seconds, you’ll stay invincible forever.
- In theory, it’s possible to execute this strategy as the Psycho Possessed class, since you only need the Imp Contraptioneer Class Heritage abilities to build all 6 Treasured Chesty contraptions, not to maintain them. In practice, this would be a complete pain to carry out, since you’d need to keep resetting runs until offered the class early enough. But hey: that means you could soar to the top of not one, but two leaderboards!