Upgrading

Tool upgrading lets Architects increase the rarity tier of a tool - improving its stats, efficiency, and durability. This system adds long-term progression and strategic decision-making to crafting.

Upgrading Path

Tools must be upgraded one rarity tier at a time:

Common → Uncommon → Rare → Epic → Legendary → Mythic

You cannot skip tiers.

Upgrading Cost

Each upgrade attempt requires a Crystal cost and has a success chance. The higher the rarity tier, the more crystals are required - and the lower the success rate.

Upgrading Chances and Crystal Costs

Upgrade Path	Crystal Cost	Base Success Rate
Common → Uncommon	1	60%
Uncommon → Rare	2	40%
Rare → Epic	3	25%
Epic → Legendary	5	10%
Legendary → Mythic	10	0%

There are various optional possibilities to increase upgrade chances:

Donation to the Temple of Axomamma

Optional: Donation to the Temple of Axomamma

Architects can make a donation in SUI or Divine Favor Token (DFT)* to increase their chance of success. This provides a soft monetization feature that boosts but doesn't guarantee progression.

Upgrade Path	Cost	Donation Boost
Common → Uncommon	1 or 1	+30%
Uncommon → Rare	2or 2	+25%
Rare → Epic	3or 3	+20%
Epic → Legendary	5or 5	+10%
Legendary → Mythic	10or 10	+5%

Offering of Tools

Offering of URRs

Example Calcuation A

Upgrade Attempt Uncommon → Rare

• Donation: NO

• Offering of two Common Tools with 32 and 47 Quality

• Offering of one Uncommon Tool with 5 Quality

Final Success Rate: 45.68% (40% + 1% + 0.64% + 1% + 0.94% + 2% + 0.10%)

Example Calculation B

Upgrade Risks

• On failure, the tool remains at its current rarity

• On failure, offered Tools are returned

• ⚠️ On failure, Crystals Donations and URRs are consumed regardless! ⚠️

• The feature is optional - Architects can still craft higher rarity tools directly (rarely), or salvage and retry

_{*Failed Upgrades grant soul-bound Divine Favor Tokens for each Crystal used. One Divine Favor Token can be used for the Donation Boost instead of SUI. Divine Favor Tokens also have other uses in the game, mostly to boost chance-based events in the Architect's favor.}