Quick answer
Buy for empty slots, merge for duplicate pressure
Early cash usually goes into filling production. Once duplicates appear and slots tighten, merging becomes the cleaner compounding move.
Crab Tycoon Buy or Merge Guide
Use open slots, duplicate pairs, offline shells, code rewards, and measured shell rate to decide whether the next cash spend should buy another crab or merge matching crabs.
Do this first
Claim, measure, then spend
Claim offline shells and measure shells per minute before the decision. If the numbers changed, the best next action may have changed too.
Decision table
When to buy, merge, claim, or measure
Use this as a practical checklist until exact public price and multiplier tables are verified.
Several empty crab slots
Empty production slots usually mean lost shell flow. Fill basic production before optimizing too hard.
Duplicate pairs and a tight board
Matching pairs are the confirmed path to stronger variants, and merging can free board space for the next cycle.
Large offline shell pile
Offline shells can change the cash total enough to alter the next buy or merge decision.
Unknown rate after a big move
Run a one-minute shell-rate check after each meaningful purchase or merge before making the next plan.
Workflow
A safe five-step loop
Repeat this after every code reward, offline claim, purchase, or merge.
- 1. Claim offline shells and check whether a code reward changes your cash.
- 2. Count empty slots and matching pairs.
- 3. Measure shells per minute with your current board.
- 4. Use the calculator to compare another buy against a merge cycle.
- 5. After spending, measure again so the next decision is not based on stale rates.