how often should we upgrade the arcane crystal?

[Cipher7]

I'm not sure if it's best to upgrade as soon as it's ready to upgrade, or if it's better to level up the tree of life more.

also, is there a limit to the levels of arcane crystal?

[UnNaMeD]

Hello Cipher,

The ratio between crystal health and crystal rewards is a logarithmic function.
This means that early upgrades will be giving significantly more crystal for each hit. It also means that later upgrades will continue giving more upgrades per health, but the difference wlil get smaller and smaller, while still always giving more.
This means that upgrading the crystal is always profitable, but the profit diminishes with every upgrade - yet still always remains profitable.

However, something else to consider, is the cost to upgrade the crystal. Crystal costs guild coins, as well as the guild tree - BUT the crystal will not grant guild exp and make your guild grow. The crystal profits to the guild members, not the guild itself.

With that in mind, you need to find the balance that satisfies you between gaining guild levels and getting more rewards from the crystal.

My personal opinion: given the crystal rewards growth of early levels, would be to upgrade the crystal every time it reaches 5/5 breaks until the rewards get significantly lower than previous level, which is around crystal level 50.

I know that some guilds prefer to ignore the crystal to get more guild levels, because these will unlock new spots in your guild for more members. It's also a good strategy, more members will have your guild snowballing.

Either way, upgrading the crystal or the tree is slow, we are of course on an idle game.

As for the limit, it hasn't been reached yet, with a crystal lvl 308 or 309 at the highest as I write the message.

See: https://firestone-idle-rpg.fandom.com/wiki/Arcane_Crystal
The formula for reward/heatlh => Y = (3000 + (X + 1) * 3000) / (22500 + (X + 1) * 675)

Hope this helps!

[Cipher7]

thanks for you in-depth answer. yes, this helps me understand a lot more!