Guide Document
Mewgenics Upgrades Guide: What to Prioritize
Last updated: March 5, 2026
Patch ConfirmedVerified: Mar 5, 2026Version: Post-launch patch cycle
TL;DR
- Upgrades are unlocked by donating cats to NPCs, and donated cats are permanently removed.
- Butch and Frank are common early priorities because storage and room space bottleneck account growth.
- Tink is high-value early because deeper cat info improves breeding decisions.
- Baby Jack gives better furniture pools from injured-cat donations.
- Dr. Beanies is usually a midgame accelerator once your runs are stable enough for harder modifiers.
Upgrade Priority Table
| Priority | NPC | What they require | What you get | Why it matters early |
|---|---|---|---|---|
| S | Butch | Cats progressed through zones | More storage (plus collar-related flow) | Storage pressure is a constant early bottleneck |
| S | Frank | Retired cats | More rooms and house expansion | More rooms improve roster and breeding throughput |
| A | Tink | Kittens | Deeper cat and breeding info | Critical for breeding quality decisions |
| A | Baby Jack | Injured cats | New and rarer furniture options | Furniture compounds house power |
| B | Dr. Beanies | Mutation/defect/disorder categories | Invention side quests and rewards | High reward, but better once run stability exists |
| B/C | Tracy | Older cats | More purchasable options | Valuable, but usually not first unlock target |
| C | Mystery Man | Cats dying in battle or home | More recovered lost items | Useful fallback, but survivability fixes usually outperform it early |
Early Upgrade Path
Step 1: Fix space first (Butch plus Frank)
- Prioritize storage and house expansion if you are forced to cut cats or items.
- Use donation flow consistently instead of waiting for perfect candidates.
Step 2: Convert kittens into information power (Tink)
- Review newborn kittens quickly and donate non-priority outcomes to Tink.
- Use improved info to tighten breeding decisions run by run.
Step 3: Farm furniture quality (Baby Jack)
- Feed injured cats steadily into Baby Jack progression.
- Convert improved furniture pool into better breeding room stats.
Step 4: Use Dr. Beanies when baseline is stable
- Treat invention-side content as acceleration, not starter progression.
- Enter harder modifiers after your core clear rate is reliable.
Low-Value Upgrades (Early)
- Mystery Man can be useful, but it compensates losses instead of preventing them.
- Tracy unlocks often happen naturally over time; avoid forcing weak long holds just for age thresholds.
- Dr. Beanies too early can slow account growth if challenge load exceeds your current stability.
Mistakes
- Treating upgrades as optional side tasks instead of planned cat-flow management.
- Ignoring storage and room bottlenecks before trying advanced optimization.
- Holding every kitten instead of feeding a deliberate donation loop.
- Wasting injured-cat opportunities instead of converting them into furniture progression.
- Pushing high-modifier invention lines before core run stability exists.