B-U4D
B-U4D is a Rare Worker droid in Star Wars: Droid Tycoon, with published raw income up to 1.86K credits per second.
◇ Kyber / activation states
Reported v1.32 data, reviewed 26 September 2026. Income below is before station, bay and global bonuses. The Kyber row in the main table is the inactive rate.
| State | Income / second | Activation chance | Rebirth 36–40 |
|---|---|---|---|
| ◇ Inactive | 1.86K | Starting state | Activate first |
| ◇ Green | 5.57K | 50% | Qualifies when stationed |
| ◇ Blue | 6.03K | 30% | Qualifies when stationed |
| ◇ Purple | 6.68K | 20% | Qualifies when stationed |
Activation: 2 Kyber Crystals or 400 Nova, at Huyang with this droid equipped as a companion and at least one rebirth. Payment availability needs confirmation. Inactive Kyber has no companion perk; activated colours share the same power-8 perk.
Base sell-chip reward: 24. Kyber crafting is reported as twice Stellar's duration; exact raw times remain withheld where the matching-depot convention is unresolved. Protocol bay effects are separate from colour income and are not extrapolated.
Every variant
| Variant | Income | Craft cost | Sell | Craft time | Raw-income payback | Next upgrade |
|---|---|---|---|---|---|---|
| Base | 58/s | 130.00K | 91.00K | 2m | 37m | Gold: 30 chips |
| Gold | 116/s | 520.00K | 364.00K | 8m | 1h 14m | Diamond: 60 chips |
| Diamond | 232/s | 1.04M | 728.00K | 15m | 1h 14m | Rainbow: 100 chips |
| Rainbow | 464/s | 1.56M | 1.10M | — | 56m | Beskar: 250 chips |
| Beskar | 698/s | 2.08M | 1.45M | — | 49m | Galactic: 400 chips |
| Galactic | 1.39K/s | 2.60M | 1.82M | 32m | 31m | Stellar: 750 chips |
| Stellar | 1.86K/s | 3.12M | 2.18M | 39m | 27m | Kyber: 1,000 chips |
| Kyber | 1.86K/s | 4.68M | 3.28M | — | 42m | Max tier |
Payback divides the published craft cost by raw income only, excluding station and account bonuses. Non-earning placements have no earning payback.
Next upgrades use the community-reported Upgrade Chip matrix, reviewed 2026-09-26. These are per-step chip costs, not blueprint credit costs or sell-chip rewards; not independently verified here.
Community references use different crafting conventions: some ordinary times include a 10% matching-depot reduction, while the retained snapshot excludes it. Only the 28 missing Protocol durations were added as reported raw seconds, without that reduction. Other times have not been normalized or adopted; remaining unknowns, including withheld Rainbow/Beskar times, stay unknown.Crafting data and conventions.
Source discrepancies
Unresolved comparisons retain their snapshot values. Supplemental fields are reported, not independently measured. Payback estimates using disputed costs or income are uncertain.
| Variant | Field | Retained value (used) | Community comparison (reported) |
|---|---|---|---|
| Beskar | Income/sec | 698 | 696 |
| Galactic | Income/sec | 1,390 | 1,392 |
| Stellar | Income/sec | 1,860 | 1,856 |
Retained values compared with a community reference on 2026-09-14. All income differences and cost/sell differences over 1% are shown. The reported values are not independently verified replacements.
Rebirths that require B-U4D
A rebirth only counts droids actually deployed in your base, though the lounge counts. The base planner works out where this one should sit, and each rebirth path has a planner of its own on its tracker's Base tab.
Community-reported data, snapshot collected 2026-09-12, with a separate reference review on 2026-09-14. These dates do not imply in-game verification. Back to the Droidex.