Challenges and Sports

Online #

Programming/Math Challenges #

Name	Description
Project Euler	Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve.
The Eudyptula Challenge	The Eudyptula Challenge was a series of programming exercises for the Linux kernel
The Cryptopals Crypto Challenges	We’ve built a collection of exercises that demonstrate attacks on real-world crypto.
The Monad Challenges	Monads cannot be taught. They must be discovered
The Deadlock Empire	solve for deadlocks
Advent of Code 2021	Advent of Code is an annual set of Christmas-themed computer programming challenges
The Computer Language Benchmarks Game	A free software project for comparing how a given subset of simple algorithms can be implemented in various popular programming languages.
Rosetta Code	Rosetta Code is a programming chrestomathy site.
The SQL Murder Mystery	Can you find out whodunnit?
RegEx Crossword	It’s a crossword puzzle where you need to fill in the hexes with character sequences, so that they match the regular expressions listed around the edges.
The Case of the 50ms request	This is a mystery where your goal is to solve a debugging problem! You’ll collect clues, interpret evidence, and ultimately solve the Case of the 50ms Request!
Al Zimmermann’s Programming Contests	Demented computer programmers compete for glory and for the adulation of their peers.
Hanukkah of Data	data puzzles
The Case of the Slow Websites	A mystery where your goal is to solve a debugging problem! You’ll collect clues, interpret evidence, and ultimately solve the Case of the Slow Websites!
Protohackers	Server programming challenge.
Code Golf	Code Golf is a game designed to let you show off your code-fu by solving problems in the least number of characters.
IPv4 Turf War	Claim The Land At 110.225.222.12
Elevator Saga	The elevator programming game!
Turing Complete	Learn CPU architecture with puzzles
SadServers	Troubleshooting Linux Servers
Untrusted	a user javascript adventure game
alert(1) to win	undefined
Play Battlesnake	A multiplayer game where your code is the controller.
Tiny Code Christmas	an event to help you take your first steps in demoscene sizecoding with Lua based fantasy consoles
Five Hundred Words	Web application which helps people grow in the practice of habitual writing.
30DayMapChallenge	Daily social mapping project happening every November
Chronophoto	The Photographical History Game
100 Days To Offload	Can you publish 100 posts on your blog in a year?
Wheel of Misfortune	SRE Game
Busy Beaver Challenge	The goal of the Busy Beaver Challenge (bbchallenge for short) is to collaboratively prove or disprove the following conjecture [Aaronson, 2020]
Tiny Code Christmas	Tiny Code Christmas is an event to help you take your first steps in demoscene
Gossip Glomers · Fly	A series of distributed systems challenges brought to you by Fly.io. stream by Jon G.
hackattic	Hard, no-nonsense programming challenges
1.3B Worldcat scrape	Wordcat scrape and data science mini competition
PID control challenge	proportional-integral-derivative (PID) controller.
PANIC 50	50 small prank programs for kids and adults
ArchNotes CTF	CTF for Architecture Notes

Games #

Name	Description
pacman	Classic pacman with procedurally generated infinite vertical maze.
wikitrivia	Wikidata as a trivia card game.
Improbable Island	text adv
botany	command line virtual plant buddy
trust	An interactive guide to the game theory of cooperation
bookstory-en	English translation of BookStory
clmystery	A command-line murder mystery
Absurd Trolley Problems	Solve trolley problems
xkcd Time - at your own pace	Don’t understand yet
One Hour One Life	Live entire live in one hour
Citybound	A city building game
Desktop Goose by samperson	Goose for your desktop.
Bitburner	a cyberpunk-themed incremental RPG! The game takes place in a dark, dystopian future
Tomorrow Corporation	Program little office workers to solve puzzles
7 Billion Humans	Automate swarms of office workers to solve puzzles inside your very own parallel computer made of people.
TIS-100	TIS-100 is an open-ended programming game by Zachtronics
SHENZHEN I/O	BUILD CIRCUITS. WRITE CODE. RTFM.
Screeps	MMO strategy sandbox game for programmers
Zachtronics	The year is 1997. You used to be a hacker, but now you have the phage.
MHRD	MHRD is a hardware design game
Code Romantic	Code Romantic is a computer science puzzle visual novel
Retro Gadgets	Retro Gadgets is a gadget creation station where you invent, build, solder
SpaceTraders API	API based trader. stonks. to the moon fr fr.
Hacknet	Hacknet is a modern, super immersive terminal-driven hacking game
Play UNO	Online with friends for free! - Pizzuno 🍕
Factorio	Factorio is a game about building and creating automated factories
Hackits	See this and this
Little Alchemy	mix things
Metazooa	Figure out da animal
Wikiracing	Players race towards the goal of traversing from one Wikipedia page to another
sandspiel	SAND!
graphsworld	Guess the graph

Emulators #

Name	Description
Avocado	🥑 PlayStation 1 emulator
nes	NES emulator written in Go.
yuzu	Nintendo Switch Emulator
ruffle	A Flash Player emulator written in Rust
nestur	The NES (emulator) you left outside in the rain but let dry and still kind of works
hackmud	ｈａｃｋｍｕｄ is a cyberpunk themed text-based hacking simulator
PICO-8 Fantasy Console	Play, create and share tiny games and other cartridges!
TIC-80 tiny computer	TIC-80 is a free and open source fantasy computer for making, playing and sharing tiny games.
100R — uxn	The Uxn ecosystem is a clean-slate personal computing stack
keirf/flashfloppy	Floppy drive emulator for Gotek hardware
wasmboy	Game Boy / Game Boy Color Emulator Librar in WASM

Offline #

Name	Description
Speedcabling Championship	An attempt to un-tangle cable
The Game (mind game)	The game is to not think of the game
alexellis/growlab	A global contest to grow and monitor your own food with Raspberry Pi
Server Throwing Championship	What the name says
Card Game Rules	Card games
The Natural Number Game	a part-book part-game which shows the power of induction.
Geocaching - Wikipedia	outdoor recreational activity, in which participants use a Global Positioning System (GPS) receiver or mobile device and other navigational techniques to hide and seek containers
Chicken Rush	Race against your friends to find the Chicken first in the ultimate game of hide & seek.
The UNIX Pipe Card Game	This is a card game for teaching kids how to combine unix commands through pipes.
The Domino Computer
Wandrer	Wandrer.earth is an exploration game where you win by going places
Crokinole	o

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Emulators #

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