The Italian card game Scopa played against a computer opponent.

A tower defense rendered entirely with CSS 3D transforms in an isometric world themed around Maori mythology. No canvas or WebGL.

A turn-based 4X strategy game in the browser: found cities, explore a generated world, research technologies, build armies and conquer rival empires, with a 2D map and an optional 3D view.

A browser rummy game against the computer. The first player to reach 100 points loses.

A js13kGames 2022 turn-based game (theme: death): a warrior's soul must clear the goddess Hel's trial to ascend to Valhalla.

Clock patience in vanilla JavaScript and CSS: lay the cards out like a clock face and turn them over hour by hour.

Five in a row on a grid board against an AI opponent that looks for threats.

A dungeon-crawling tower defense game in which a paranormal researcher clears an old crypt of spirits, possessed animals and demons, wave after wave, with a normal or permadeath mode.

A 3D tower defense game on a hand-written WebGL renderer with five tower types, upgrade trees, 35 waves and saved meta-progression.

Dots and Boxes against a computer opponent: draw lines between dots and complete more squares than your rival.

A simple grid tower defense with basic, fast and strong defences that can be upgraded or removed.

A Gamecodeur Game Jam 37 tower defense (theme: chain explosion): destroy every tank or survive their passage, and set off chain-reaction specials.

A tower defense game rendered in 3D with three.js.

Chinese chess (xiangqi) against a compact but strong computer opponent, with adjustable difficulty.

Two-player checkers in the browser with kings and multi-jumps. Jumping when available is enforced.

Lead a rebel group building units to destroy the 13 pylons through which an oppressive AI rules the world.

A js13k 2023 defense game set in 1258: place archers, knights and walls to protect your treasure from the advancing Mongol horde.

The Spanish card game Escoba de Quince against a computer opponent: capture table cards that sum to fifteen with a card from your hand.

A classic tower defense: creeps march a serpentine road while you build and upgrade four tower types across 20 waves.

A card battler: draw cards for attack and defense but bust if your hand reaches 13 or the Death card appears.

A js13kGames 2023 turn-based strategy game: take control of one of four kingdoms and unite a generated map by recruiting and moving armies. Hot-seat for up to four players or against the computer.

The classic five-in-a-row abstract strategy board game, played against a computer opponent.

Checkers (draughts) against a computer opponent.

Play chess as white against a small minimax AI with alpha-beta pruning, built on chessboard.js and chess.js.

A small turn-based tactics game with emoji units: progress through a chain of encounters from a house to a mountain, fighting an AI army in each battle.

A turn-based buying and selling game: start with a $1000 loan for a produce stand and react to daily market scenarios to buy low, sell high and pay off the bank.

Chinese chess on boards of any size from 5x6 up to 30x30, with optional extra generals, a queen and obstacles, plus an alpha-beta AI running in a Web Worker.

Mahjong solitaire with three layouts, scoring, a timer, hints, undo and shuffle. The interface is in Portuguese.

A tower defense game where every tower fires a laser: aim the beams so they bounce off silver reflectors around the map to hit waves of enemies, choosing among four laser types.

A tower defense game with an ant theme: build defenders along the trail to stop 40 rounds of bugs from stealing your sugar, with a guided tutorial and difficulty modes.

Fei Xing Qi, the Chinese take on ludo, for 2 to 4 players with colour jumps, flying shortcuts and safe zones.

A dusk-pass tower defense: keep a mountain road open while blight beetles press the lantern-tower.

Klondike solitaire made with JavaScript and CSS, with no images.

The classic disc-flipping board game played against a computer opponent on an 8x8 board.

The Austrian two-player trick-taking card game Schnapsen against a computer opponent, with marriages and declaring 66.

A maze-building zombie tower defense: one spawn point, endless waves and deep upgrade trees across four maps.

A tower defense game made for js13k 2014. Build and upgrade fire, water, earth and air towers to hold back the waves.

Aces Up patience drawn entirely in CSS with no images: discard cards until only the four aces remain.

A turn-based 4X strategy game in the browser: found cities, explore the map, research and expand your empire.

Chess against a computer opponent that searches with minimax and alpha-beta pruning.

A canvas tower defense game with cannon and missile towers placed on a grid map to stop waves of enemies walking toward your base.

A small real-time strategy game for js13k 2019. Land on an alien planet, harvest energy, build units and fight off the creatures in a 3D voxel-like world.

Rock, paper, scissors against a small neural network that learns from your last moves to predict what you will play next.

Rock, paper, scissors against a computer opponent that remembers your patterns and tries to predict your next throw.

A small pixel-art tower defense game built with Phaser: place and upgrade towers along a winding path to stop waves of enemies.

Collect mushrooms in the forest, buy upgrades and hirelings, but beware the forest god punishing greed.

A space tower defense game from js13k 2018: build mining stations and laser, rocket, beam and lightning platforms in orbit to fend off attacking ships.

Golf solitaire in pure CSS and JavaScript: clear the tableau by playing cards one rank above or below the waste card.

Five-in-a-row on a large board, against a friend on the same device or a defensive computer opponent.

A real-time tower defense with fire, ice, lightning and earth towers against continuous waves.

A grid-conquest incremental game: your cells generate nanites and push them into neighbouring cells to take them over, while you buy upgrades to spread faster.

A tower defense game in p5.js with several tower types, multiple maps and increasingly tough enemy waves.

Tic-tac-toe against a minimax computer opponent.

Klondike solitaire with stock, waste, four foundations and seven tableau columns. No dependencies.

A classic canvas tower defense: build and upgrade cannons, lasers and more along the path to stop waves of monsters before they reach your base.

As a sentient flame, upgrade your followers' influence and burn down as much of the city as possible.