gameplay
Puzzle
Worlds (33)

openNES Snake
A clean-room rebuild of the classic Snake for the NES, written in C with the cc65 toolchain.

Snake (NES)
Classic Snake, homebrewed for the NES.
Golden Voyage
An old sea captain charters you to find the three Jewels of Light. The Mediterranean, the Nile, the Strait of Magellan. Bring them home and split the gold.
Savage Island Part 2
The conclusion of Savage Island. Time-travel paradoxes, an alien lab, and the answer to who has been watching you the whole time.
Savage Island Part 1
Marooned on a remote island with no memory of how you got here. Survive long enough to discover what brought you. First half of the two-part finale.
Ghost Town
An abandoned Old West town hides a hoard of gold. Walk in past the swinging saloon doors. The townsfolk aren't gone, just no longer breathing.
Pyramid of Doom
An Egyptian pyramid lies untouched in the desert. The treasures inside are guarded by a curse three thousand years old.
Mystery Fun House
A secret message is hidden somewhere in the carnival's funhouse. Find it before the gates close at midnight.
Strange Odyssey
A meteor shower has crippled your spacecraft. Stranded on an alien moon, recover the treasures of a long-dead civilization and find a way home.
The Count
You wake in a four-poster bed inside a Transylvanian castle. Count Dracula stalks the halls. Find a way to destroy him before sundown.
Voodoo Castle
Count Cristo has had a fiendish curse placed upon him by his enemies. Trapped in his coffin, only you can free him from the voodoo spell.
Secret Mission
A nuclear reactor is set to explode. Find the bomb, defuse it, and identify the saboteur before the warhead triggers a global incident.
Pirate Adventure
Stranded on a deserted tropical island, find the long-lost pirate's hidden treasures and sail his ghost ship back to your London flat.
Library of Horror
A larger interactive-fiction demonstration bundled with the PunyInform Z-machine v3 library â a haunted library puzzle with multiple rooms, NPCs, and inventory-driven progression.
Cloak of Darkness
Roger Firth's canonical interactive-fiction reference. A short three-room tour designed in 1999 to validate IF interpreters across implementations.
Adventure
Crowther & Woods' 1976 cave-exploration adventure, ported to Inform 6 by Donald Ekman et al. The interactive original behind every IF game since.
Adventureland
Scott Adams' 1978 treasure-hunt adventure. First commercial computer adventure game.

Threediopolis

You Won't Get Her Back

Weary Eerie Way

Psyops, Yo
3DGreyhollow
Fog-drowned survival horror in a PS1 nightmare.
PlatformerLumenleap
A glowing spirit's watercolor platforming dream.
3DFogfall Verify
In the shadows of a forsaken town, every whispered secret could be your last breath
3DTrials of Hercules
Face monstrous foes and divine challenges as redemption hangs in the balance of your strength
PlatformerEverlight Haven
Scale the dilapidated structure, shedding light on lost beacons while evading relentless clockwork foes
ArcadeLily Pad Reverie
Balance tranquility and excitement as you skip pebbles through an enchanting water garden
ArcadeCookie Clash
Compete for sweet supremacy in a vibrant landscape of towering bakeries and cookie machines
NarrativeSomnoir
The bad dream you never wake up from.
Lost Sock Sunday
Every drawer, couch cushion, and backyard bush hides one more treasure before the dinner bell rings
Wizard's Palace of Orbs
Explore a sprawling 3D palace as a wizard, hunting for scattered magical orbs to brew potions and grow more powerful. Collect, craft, and level up your arcane abilities as you delve deeper into the palace's secrets.
NarrativeHalcyon Drift
A derelict miner has power, air, and an AI that knows your name before you say it
3DLabyrinth
Every shadow holds a secret, and each turn could lead to freedom or trap you forever