PPolySim OS
For Hobbyists & Makers · Project Portfolio

Project Portfolio for a game-theory standoff

Built for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker. Simulate a game-theory standoff live below — adjust the inputs and watch it respond, right in your browser.

1

Critical Path

open full solver →
Critical Path MethodLive

Controls

Presets

The Critical Path Method finds the longest chain of dependent tasks through a project — the sequence that sets the minimum completion time. Tasks on it have zero slack: delay any one and the whole project slips. Tasks off it can float. Stretch task B or D and watch the critical path re-route. The backbone of project management.

▶ Run in Python

Data Inspector

Project duration15 days
Critical tasksA, B, D, F
Tasks6
Reading this result: The critical path is A → B → D → F at 15 days. Tasks C, E carry slack — delaying them will not move the finish date, but any slip on a critical task pushes the whole project.

Governing equation

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

Monte Carlo Price SimulationLive

Controls

Presets

Geometric Brownian motion models a price with constant drift and random volatility — the assumption behind Black-Scholes. Running hundreds of simulated paths reveals the full distribution of outcomes, not just an average. Educational tool, not investment advice.

▶ Run in Python

Data Inspector

Median outcome$0
5th percentile$0
95th percentile$0

Governing equation

Reading this result: Median outcome is about $0, just under the drift-only $107 — GBM compounds in log-space, so volatility always pulls the typical path below the average.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

More with Project Portfolio

Frequently asked questions

Is this good for hobbyists & makers?
Yes — this version of "Project Portfolio for a game-theory standoff" is framed for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker.
Do I need to install anything?
No. It runs in any modern browser, free, with no account required.