A plea from a frustrated player.

[Killer Goblin]

I am having extreme difficulty building up the bulwark or spinfection to unlock the classes that need these as requirements to get.
Maybe give players a chance to unlock via lifetime achievements as an additional method:
Example
"Get a total of 100 bulwark OR over your career block 5000 damage with bulwark"
"Get 40 spinfection on a single enemy OR deal 10000 damage in spinfection over your career"
I've spent literally hundreds of hours on this game and have got nowhere near those numbers currently required (the 100 bul / 40 spin). Heck, I only unlocked the spinventor by sheer RNG by getting multiple slime orbs, a couple of duplication altars, AND a double all orbs upgrade (8 or so slimeing orbs), and then only barely.

[Crazyfaith]

just git gud mr. goblin

[vindicar]

They should remove that stupid "Can't unlock anything in Custom Start mode" restriction.
Would've solved so many problems...

[randomuser505]

Been playing for around a month now and the highest Bulwark number I've achieved is only 40
To be fair I've always been playing on the highest Cruciball level but still

[phillip_lynx]

Originally posted by randomuser505:

... I've always been playing on the highest Cruciball level but still

This holds you up.
Play with no cruciball and with the start char. It should take not more then 3 to 5 runs with a little luck and good planing to unlock a char (which makes it to max 15 runs to get all three :) )

[Zelakon]

OP, the fact you think doubling your orbs to make 8 slimers helped you unlock Spinventor is exactly the problem with your understanding of what to do. Maximalism is pure anti-strategy in deckbuilding roguelikes; you should be aiming for minimalism instead. The only people who struggle with focusing their builds to specification are people who don't know how deck size/ratios affect their draws.

Here's an example for you. Which do you think would have an easier time of unlocking Balladin: A satchel consisting of 12 orbs, 8-10 of which are duplicated lvl 1-2 bulwark appliers; or one with only 3 orbs, 1-2 of which are lvl 3 bulwark appliers? The latter blows the former out of the water.

I got all 3 of the unlocks on my first tries when actually aiming for those builds. These are not challenges that require much luck; the rarer achievements like forming the Assemball or succeeding a run with 2 eggs are, and yet I still only spent a total of 15hrs on this game to achieve all of them (except for cruciball which I cba with, as it sounds too RNG-heavy and therefore not fun at all).

Yes there is a little luck involved to encounter the orbs required, but you can easily maximise the efficacy of even a single orb that provides the desired effect by removing everything else that doesn't. You should always be aiming for a deck that holds only 3-4 orbs; generally one damage dealer, one healer (although not necessary if building for bulwark), and then 1-2 slime/bulwark/spinfection appliers, depending on what character you're aiming to unlock that run.

Just find something like Rubborb or Ball Lightning early and upgrade it, but only buy one and nothing else. Visit every shop you can to always remove the pebballs. If you find a healing orb like Doctorb then upgrade before you use it, otherwise you lose it. Nosforbatu is also great as it deals damage too. Goes without saying but you'll be aiming to achieve your unlock on a boss level; usually World 2 as you'll want all your orbs upgraded to max for this. If you find the relic that makes all pegs durable then you've basically done it.

[PKblaze]

Best trick to getting them is to get set up with the persist ring, get orbs relevant to the stat and then get the Demon Wall. Demon Wall doesn't hit you and has tonnes of health allowing you to rack up ballwark easily and spinfection.