Progression
GrindScope
Turn XP formulas into player-time estimates. Compare curves, inspect target-level pacing and export per-level balancing data.
$2.99+
Get GrindScope7-day toolkit sale GrindScope + EconScope + LootSim for $6.99 (normally $10.97). Ends October 7.
Get the bundleGame balancing without spreadsheet pain
Balance your game before players break it.
Focused offline tools for progression pacing, game economies and loot systems. Open the file, test your numbers, export the results.
7focused tools
4 freestart with DropChance
100% offlineafter download
0 telemetryyour data stays local
No subscriptionsNo accountsNo telemetryCSV / JSON exportsIndie-dev focused
Start free
A simple probability calculator for a common RNG question—and a quick way to see how TinyForge tools work.
Free / $0 or donate
DropChance
Enter a drop chance and number of attempts. Get the chance of at least one success, the chance of still missing, expected attempts, expected drops, and the attempts needed to reach common confidence thresholds.
Need full loot tables, Monte Carlo dry-streak analysis or pity systems? DropChance points directly into LootSim.
Download DropChance freeMore free game-design calculators
TinyForge Game Tools also offers these focused calculators for modeling pity, leveling pace and in-game currency flows.
RNG / Pity
Hard Pity Calculator
Explore how a hard-pity limit affects attempts and when a drop is guaranteed under your pity settings.
Open calculator → ProgressionXP & Leveling Time Calculator
Estimate XP requirements and the time needed to reach levels using your progression inputs.
Open calculator → EconomyGame Economy Faucet & Sink Calculator
Compare currency faucets (sources) and sinks (spending) to assess the balance of your game economy.
Open calculator →Practical balancing guides
Short explanations behind the math, written for game designers rather than statisticians.
Paid balancing tools
Each tool stays intentionally narrow: fewer menus, faster answers, no SaaS overhead.
Economy
EconScope
Stress-test currency faucets, sinks, wealth growth, purchase behavior and item affordability across long simulations.
$3.99+
Get EconScope
RNG / Loot
LootSim
Run Monte Carlo loot tests, measure dry streaks and model soft or hard pity before players experience your RNG.
$3.99+
Get LootSimWhich tool do I need?
| Question | Tool | Price |
|---|---|---|
| What are the odds I get this drop? | DropChance | Free |
| Is leveling too fast or too grindy? | GrindScope | $2.99+ |
| Will players accumulate too much currency? | EconScope | $3.99+ |
| Will rare drops / pity feel fair? | LootSim | $3.99+ |
Get all 3 paid tools for $6.99 this week.
Progression + economy + RNG balancing in one limited-time toolkit.