Tools
Plan the run, then spend it
DRAPLINE is deterministic enough to plan: feeding decides stats, stats and treatment decide the aura, and gold decides which meals are even on the table. These tools do that arithmetic with the numbers the game prints, and they say “unknown” where it does not.
Aura planner
Two questions — what you feed, how you treat her — and the aura the October check will award. Includes the extra Whimsical condition players miss.
6 outcomes · 1 deadline
OpenMeal affordability
Set your gold and the weeks left, see which star tier you can actually sustain — and how many weeks short the ambitious one leaves you.
3 tiers · documented numbers only
OpenAchievement checklist
The tracker lives on the achievements page itself: all 66 rows, filterable by rarity, with progress kept in your browser.
66 rows · saved locally
OpenWhy so few
A calculator is only as good as its inputs. The game publishes tier prices, first-tier stat values and the aura mapping, so those are the tools worth building. It does not publish the full skill table or the 25 ending conditions, so there is no skill optimiser or ending router here — those would be a plausible-looking interface wrapped around invented numbers.
Tier prices and aura mapping verified on patch 1.0.2. Stat values from the in-game meal list.