Runescape Classic

Turn abstract probability and statistics concepts into visible, easy-to-understand content with fun interactive visual demos. Master core probabilistic thinking, and dive deep into classic theories including the Law of Large Numbers, Bayes' Theorem,

Classic online puzzle gaming platform

Dragonsweeper is a free strategy puzzle game that blends classic Minesweeper gameplay with RPG elements. Clear mines, defeat monsters, level up, and embark on an epic adventure to slay evil dragons!

Play retro emulator games for free online, including NES (FC), SNES (SFC), Sega Genesis (MD), Neo Geo, GB, GBA, N64, PS1/PSX and arcade classics! Access the best retro game collection with no downloads required.

cpstest is a web-based tool for testing mouse click speed, evaluating concentration, measuring reaction speed, and providing fun, focused training.

Simple online tests for reaction time, memory, and focus