Gacha Simulator
This tool does NOT predict your luck — it computes PROBABILITY and mathematical expectation from Endfield's official rates (0.8% base, soft pity from pull 65, hard pity at 80, a 50/50, a 120-pull guarantee for characters; 4%/25% and 40/80 pity for weapons). Enter how many pulls you plan to spend to see realistic numbers, not a promise.
Enter Your Pulls
What this calculator does
Enter where your pity stands and how many pulls you can afford, and this tool estimates your real chance of walking away with the featured 6★ operator before your banner ends. It folds in soft pity, hard pity, the 50/50, and the 120-pull safety net so you do not have to do the probability math by hand.
When to use it
Use it before you spend — the moment a banner you want goes live and you are asking "I have X pulls saved, is that enough?". It answers three decisions: pull now or save, whether to push to the guarantee, and how many pulls to set aside for the operator you actually want.
How to use it — 3 steps
- Current pity: how many pulls since your last 6★ (0 if you just got one).
- Pulls on this banner: how many times you have already pulled on the current featured banner (this feeds the 120-pull safety net).
- Pulls you have: your budget in pulls. Tick the box if you already pulled the featured operator on this banner — that uses up the 120-pull safety net, leaving only natural 50/50 odds on later 6★s.
How to read the results
- Chance of featured 6★ — the headline number: probability you get the operator you want within your budget. Above ~90% is safe; 40-70% is a coin-flip, consider saving more.
- Chance of any 6★ — odds of at least one 6★ (featured or not).
- Pulls to guarantee — the worst-case pulls to be 100% certain of the featured operator (the 120 safety net).
- Average pulls per 6★ — how many pulls a 6★ costs you on average.
How the pity system works
Character headhunting in Arknights: Endfield runs a two-stage pity:
- Base rate ~0.8% per pull for a 6★.
- Soft pity from pull 65 — the rate ramps up sharply each pull after that.
- Hard pity at pull 80 — a 6★ is guaranteed.
- 50/50 — when you hit a 6★, it is a coin-flip between the featured operator and a standard one. Losing it does not lock your next 6★ to the featured operator — every 6★ is a fresh 50/50.
- 120-pull safety net — the featured operator is guaranteed by your 120th pull on that banner. It triggers once per banner, resets when the banner ends, and does not carry over (your 80-pity does carry over).
| Milestone | Pull | What happens |
|---|---|---|
| Base | 1-64 | ~0.8% each |
| Soft pity | 65-79 | Rate climbs fast |
| Hard pity | 80 | 6★ guaranteed |
| Safety net | 120 | Featured guaranteed |
FAQ
Does pity carry over between banners?
What does "guaranteed" mean?
Is 80 pulls always enough for the operator I want?
Explore more
Banner & Gacha Mechanics
1. Character Rates & Pity System (Limited Scout)
Every character banner in Endfield shares the same base rates, layered with two safety nets: a soft pity at pull 65 and a hard pity at pull 80. All five reference sources agree on the 0.8% figure.
| Rarity | Base rate | Note |
|---|---|---|
| ★6 | 0.8% | Top-tier operator |
| ★5 | 8% | At least one guaranteed every 10 pulls |
| ★4 | 91.2% | — |
- Soft pity — pull 65: from the 65th pull onward, the ★6 rate climbs by roughly 5% per pull, hitting 100% at pull 80.
- Hard pity — pull 80: a ★6 is guaranteed by pull 80 at the latest. However, that ★6 is subject to a 50/50: 50% chance it's the rate-up operator, 50% chance you "lose" to an off-rate ★6.
- Featured guarantee (spark) — pull 120: if you lose the 50/50, pull 120 guarantees the rate-up operator. The 120 counter resets every banner (no carryover) and triggers once per banner.
- Carryover: the 80-pull hard-pity counter carries over between banners; the 120 counter does not.
- Dupe (240 pulls): reaching 240 cumulative pulls earns a duplicate/potential copy of the rate-up operator.
- Perks: a free 10-pull after 30 pulls, and a dossier after 60 pulls.
On average: because of the 50/50, the expected pulls to secure one rate-up operator is around ~90 pulls (≈ 45,000 Oroberyl) — you won't always have to reach 120.
2. Weapon Banner (Arsenal)
The weapon banner is entirely separate from the character banner, using its own tickets and its own pity milestones. The ★6 rate is five times higher than on character banners.
| Item | Figure |
|---|---|
| ★6 rate | 4% |
| Rate-up weapon on a ★6 | 25% (each other weapon 12.5%) |
| Hard pity ★6 | 40 pulls |
| Featured weapon guarantee | 80 pulls |
| Weapon selector | 100 pulls |
| Cost | 1,980 tickets / 10 pulls |
Cross-checked — not a conflict, just a UNIT MISMATCH: the JA sources count in “ten-pull units” (1 回/ticket/attempt = 10 pulls), not single pulls. 4/8/10 ten-pull units × 10 = exactly 40/80/100 pulls — a perfect match with the EN figures gamevika uses. The JA sources also mention a second guarantee point at 18 ten-pull units (180 pulls), repeating every 8 ten-pull units (80 pulls) after that — see the two-unit table below.
3. Currency & F2P Budget
The main pull currency is Oroberyl (called "Red Originium" in JA sources). Each pull costs 500 Oroberyl; a 10-pull costs 5,000.
| Guarantee milestone | Pulls | Oroberyl needed | F2P time (~11k/month) |
|---|---|---|---|
| Guaranteed ★6 (hard pity) | 80 | 40,000 | ~3.6 months |
| Guaranteed featured | 120 | 60,000 | ~5.5 months |
| Dupe (spark) | 240 | 120,000 | ~11 months |
- F2P players earn roughly 10,000–12,000 Oroberyl/month (~20–24 pulls), per multiple community sources.
- On average you only need ~90 pulls (~45,000 Oroberyl) to secure one rate-up operator — about 4 months of F2P saving per limited character.
- Tip: bank ~80 pulls before a banner opens so soft pity + the 50/50 do the work and you rarely hit the 120 ceiling.
4. Standard Scout Banner
Beyond limited banners, Endfield runs a permanent Standard Scout with the standard ★6 operator pool. The ★6 rate is still 0.8% with hard pity at 80, but there is no 50/50 (every ★6 is on-pool). Reaching 300 cumulative pulls unlocks a selector ticket to pick ANY standard ★6 — ideal for new players securing a foundational unit.
Common Mistakes
A common mistake is confusing "expected value" with "guaranteed" — expectation is a long-run average, any single pull session can still land far from it. Do not stop halfway around pull 60-70 and walk away, since the 120-pull guarantee resets every banner and does not carry over.
FAQ
Does this tool predict what I will pull?
No. This is a PROBABILITY calculator based on officially published rates, not a prediction or luck-telling tool.
Where do the rates come from?
The same source used on the Pity Calculator page — figures cross-checked between official EN and JA sources, nothing invented.
Does the featured expectation include the 120-pull guarantee?
Yes. The calculator accounts for the 120-pull guarantee (which does not carry to the next banner) once you enter how many pulls you have already spent on the current banner.