The pack ROI calculator — your numbers, not mine
The homepage runs three preset archetypes for you. This page strips the presets away so you can plug in your own oil-per-second, your own daily hours, and your own upgrade style. It uses the same ROI model I ran on the 5 players I tracked — just aimed at your situation.
Check the gauge above your first rig. Mid-game is ~15-30.
How the calculator thinks
The math has three inputs that matter and one that quietly sneaks in.
Oil/sec is your sustained production rate before the pack multiplier kicks in. If you're early-game and fluctuating between 1 and 3 oil/sec depending on rigs, use the lower number. The calculator is conservative on purpose — I'd rather tell you a pack takes 10 days to break even and have it land in 8 than the reverse.
Hours per day is the honest average, not the optimistic one. Count the days you don't log in. If you play 3 hours on Saturday and 0 on weekdays, your average is roughly 26 minutes/day, not 3 hours. Use 0.4.
Upgrade style matters because where you spend the pack-amplified currency changes how quickly your rigs compound. Aggressive (multipliers first) hits breakeven ~15% faster. Late-game hoard stretches breakeven ~18% longer but sets up a bigger late-stage spike.
The quiet fourth input: the calibration constant of roughly $0.14/hour per oil/sec. That's from my tracking sample — your mileage may vary by around ±12% based on your specific rig roster and which upgrades you prioritize. If my numbers feel off for your setup, treat them as directionally right but tune your own mental buffer.
What the verdict actually means
- Green light (under 3 days): the pack pays back before most players get bored. Green-lights usually mean Devil or Angel at 2+h/day, or Infinity at 3+h/day.
- Green-but-cautious (3-7 days): works if you're actually consistent. Most players overestimate their consistency.
- Borderline (7-14 days): only if you know you're going to log in every night. If you've ever not logged in for a week on a game you liked, skip this one.
- Skip (over 14 days): self-explanatory. The calculator doesn't think you should buy this one at your current play rate. Grind first, revisit later.
Where this calculator loses accuracy
Three scenarios where the numbers should be trusted less:
- You're past late-game. The model assumes rig upgrades compound — which they do in mid-game. If most of your rigs are already tier-maxed, the pack's multiplier hits a lower ceiling than the calculator predicts. Trim the 7/14/30-day earnings by maybe 15%.
- You're running an event pack stack. Event packs and main packs can stack inconsistently depending on the patch. My tracking was on standard packs only. If you're combining Event + Devil, your real numbers will be different and I can't predict by how much.
- You care about leaderboard rank. The ROI model is about breakeven math, not competitive positioning. If you're grinding for a top-100 slot, Infinity's raw ceiling matters more than its ROI curve — the calculator's "skip" verdict for a light schedule is misleading if you actually want rank.
When I ignore the calculator's verdict
Two situations where I've bought a pack the calculator told me to skip:
First, when I'm testing the pack for content. I bought Infinity on day 3 of my own account knowing the calculator would say "borderline" at my then-3h/day schedule. I wanted the data for the Infinity pack deep-dive. Editorial value, not personal ROI.
Second, when I'm committing to the game socially — friends playing, guild running events. The calculator doesn't account for fun-or-social value, and neither should it. If a pack lets you keep up with your crew, that's a legitimate reason the math doesn't capture.
Related reading
The long-form version of the math lives at /pack-roi-guide — same model, more story. The pack-by-pack comparison (Devil / Angel / Infinity side-by-side) lives at /best-pack.