Event Cycle Tracker

Diamond-Spend Hot Event Rotation

Last Z rotates four diamond-spend events week by week. This tool shows which one is live right now and what's coming up — so you can save tickets, bank diamonds and time your spending for maximum value.

LIVE NOW

Bullseye (Booty)

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Ends approximately — · then — begins

The 4-Week Cycle

  1. Gacha Go
    7 days · —
  2. Bullseye (Booty)
    7 days · —
  3. Lucky Discounter
    7 days · —
  4. Lucky Choice Chest
    7 days · —

Wrong event? Set your server's week

Every server runs the same four-week cycle and switches every Friday at 02:00 UTC (03:00 UK time in summer, 02:00 in winter), but servers are at different points in it. Tap the event that is live in your game right now and the whole calendar lines up with your server.

Set an exact start time instead

Every event lasts 7 days. Your choice is saved in this browser only.

Event details

Gacha Go

Capsule machine — keys, coloured chests, Golden Wrenches & blueprints.

How it works

  • Spin a capsule machine; balls fall into 4 slots with predetermined drop rates.
  • Cost: 100 diamonds per single draw, 500 diamonds for a 5-draw bundle.
  • 5 free attempts per day — never skip these.
  • Earned rewards: Keys (primary currency), Modification Blueprints, gift boxes, speedups, badges.
  • Coloured chests from draws go to your depot (max 100). A full depot stops receiving new chests.
  • Each chest must be opened with keys within 20 minutes, or it is lost.
  • Chests hold blueprints, speedups and Golden Keys — gold chests up to 60,000 blueprints.
  • Key exchange tiers: 10 keys → 2 Golden Wrenches · 60 → 12 · 300 → 70 (best ratio).
  • Point milestones at 5,000 pts (wrenches + bonus) and 8,000 pts (15 wrenches + blueprint + gift voucher).
  • Unused keys carry over to the next Gacha Go event.

Strategy

Have keys ready before you draw — every chest gives you only 20 minutes. Keep the depot under 100 so chests keep arriving. Save diamonds for the 5-bundle (better value than singles) and bank keys for the 300-key tier — it's nearly 4× the wrench/key value of the lower exchanges. Plan key-to-wrench exchanges with the Gacha Go Planner.

Bullseye (Booty)

Spend diamonds for bullets, fire in 15-shot rounds, claim grand prizes.

How it works

  • Buy Shooting Bullets with diamonds: 100 diamonds = 1 bullet.
  • Each round is 15 shots — the first 15 shots in every Regular Round are guaranteed to drop the grand prize.
  • Every round at a multiple of 5 (5, 10, 15…) is a Treasure Round with upgraded rewards.
  • Round 12 specifically awards an Armor S Box — a key F2P milestone.
  • Event caps at 500 rounds.
  • Unused bullets carry over to the next Bullseye event.

Strategy

If you're F2P, stop spending after Round 12 — the Armor S Box is the best per-bullet value and the curve after that is steep. Whales aiming for the 500-round cap should pre-bank bullets across cycles since carryover is your friend.

Lucky Discounter

Draw discount coupons (10/30/50/70/90% off). Pity at 5/9/18/32 + every 25 draws.

How it works

  • Use tickets (saved across cycles, no expiry) to draw a random discount. 1st draw is free; each subsequent draw costs 1 ticket.
  • Drawing activates a time-limited shop selling badges, speedups, shields & fuel at the drawn discount.
  • Drop rates: 10% Off 45% · 30% Off 30% · 50% Off 13% · 70% Off 8% · 90% Off 4%.
  • Guaranteed 90% Off at draws 5, 9, 18 and 32.
  • Pity counter: every 25 cumulative draws without a 90% Off triggers one. Counter resets each 90% (guaranteed or pity).
  • 17 free tickets per event; tickets carry over indefinitely.

Strategy

Save at least 9 tickets before starting to lock in two guaranteed 90% Off draws (5 and 9). For the 32-draw pity, bank across multiple cycles. At 90% Off, prioritise badges (~0.3 diamonds per badge — roughly 5× better than normal). Detailed walk-through and per-cycle pity calculator on the dedicated tool page.

Lucky Choice Chest

Pick a theme and spin the wheel — the Grand Prize is guaranteed within 120 draws.

How it works

  • Choose a theme first: it sets the Grand Prize and what the wheel pays, and it cannot be changed for the rest of the event.
  • Each draw costs 800 diamonds. You get roughly one free draw a day, up to 7 per event.
  • The Grand Prize (40 fragments) has a 0.5% chance per draw and is guaranteed within 120 draws, then within every 240. Winning it early resets the count.
  • The other slices pay 1 to 5 fragments, speed-up boxes and resource chests. Milestone chests unlock at set draw counts.
  • Ranking rewards arrive by mail after the event. It lasts 7 days.

Strategy

Use every free draw, and choose a theme you can't easily get elsewhere (universal orange hero fragments are the usual pick, never Badges). Set your ceiling before you start, and stop the moment you win the Grand Prize: the next guarantee is 240 draws (192,000 diamonds) away. Full breakdown in the Lucky Choice Chest guide.

About the data

The order Gacha Go → Bullseye → Lucky Discounter → Lucky Choice Chest, the 7-day length and the Friday 02:00 UTC switch were checked against 35 dated in-game screenshots from 2025 and 2026, across many servers. Each server repeats the same cycle every 28 days, but servers sit at different weeks of it, so if this page shows the wrong event, tap the one that is live in your game above. Event rules change between seasons: always check the event's info page in game before spending.