games · mathematics · writing

eSandbox.me

A sandbox is where you build a thing before you are sure it works. This is mine, kept in public: the games I am making, the mathematics I am working through, and the writing. Every one of them gets a room of its own, and none of them pretends to be finished.

One page, five rooms, no order to them. Scroll, pick one above, or push the cursor against the left edge for the index.

two-ball sword duel

NEON JOUST

live physics preview — not the game
insert coin Enter the arena
  1. Rule 1

    Perpetual energy walls. Restitution 1.0, zero friction, no deceleration — nothing in the arena ever slows down on its own.

  2. Rule 2

    Combat-driven momentum injection. Damage boosts velocity, so a losing fighter is also the fastest one on the field.

  3. Rule 3

    Weapon clash triggers hit-stop for 4–6 frames, then both bodies bounce apart and their angular spin inverts.

max speed
12
base speed
3.6
lance
82px
body
r24
damage
12

P1 AD spin W thrust P2 ←→ spin ↑ thrust T ai G demo P pause R restart

Two players, one keyboard.

Chess Poker

Chess, with a bankroll on the line.

your view

Move a piece, then choose End Turn or Bet. Betting flips the board to your opponent’s view — predict their next move and wager chips. If your read is correct, you win the wager from their bankroll.

Match Pot

$0

Ante · plus every failed read

Animation only — it doesn’t play the hand.

Ante
Proposed and accepted before the first move.
Ceiling
A single wager caps at 25% of your bankroll.
Failed read
Your wager leaves you and joins the pot.
Play Chess Poker The full game — board, bankroll and the flip

Upcoming

slots allocated · 0 of 6 filled

Nothing is announced yet. These frames are held open on purpose — when something is real enough to name, it takes one of them.

Math

coming soon

Nothing is written here yet. The board is, though — so here is the thing the section will be built out of: symbols you can pick up, throw, duplicate, and press together into an expression.

drag to throw alt-drag or double-click to copy rest two together to weld double-click a weld to break it

Open the notes nothing on the board yet

Writing

No pieces published.

This section is empty and staying empty until there is something worth setting in type. When a piece lands it will appear here, newest first.

Read the archive nothing published yet