The History of Adventure: The Atari 2600 RPG Original

Adventure shipped on the Atari 2600 in 1980 and quietly invented a genre. A small square hero moving through colored rooms, picking up keys, sword in hand, fighting dragons that looked like ducks — it was strange, ambitious, and unlike anything else on the console. Adventure atari history is the story of one programmer building one of the first action-adventure games, and hiding a famous Easter egg inside it.

The origin at Atari

Adventure was developed by Warren Robinett at Atari and released in 1980 for the Atari 2600. Robinett had set out to translate the experience of the text-based computer game Colossal Cave Adventure — a 1970s mainframe game where players typed commands like “GO NORTH” and “GET KEY” — into a graphical form playable on the 2600’s limited hardware.

The challenge was severe. The Atari 2600 had 128 bytes of RAM and a graphics system designed for paddle games and simple shooters. There was no obvious way to render a multi-room dungeon with items and enemies on hardware that couldn’t even display a meaningful amount of text. Robinett built workarounds. The hero became a square. The dragons became simplified silhouettes. The rooms became flat-colored screens connected by edge-of-screen transitions. The result was crude in 1980 terms and still readable today.

How it played

The player controlled a small square — sometimes called the “Square” or “Hero” — who moved through a series of single-screen rooms connected by exits at the room edges. The objective was to find the magic chalice and return it to the yellow castle. Standing in the way were three dragons (Yorgle, Grundle, and Rhindle), a magnet (which moved items around), and various locked castles requiring colored keys to open.

Combat was simple: the player picked up the sword and could then kill dragons by touching them while holding it. If a dragon caught the unarmed player, it ate him — and a swallowed hero stayed inside the dragon until the player could find a way out (usually by getting another player or a dragon to drop the body in a useful spot, which only mattered in two-player mode).

The game had three difficulty modes. Mode 1 was a tutorial-like layout with items pre-placed in obvious spots. Mode 2 was the standard mode with randomized item placement. Mode 3 had even more variation and was the canonical “real” mode for serious players. The variation was a small piece of replayability built into a small cartridge.

The genre invention

Adventure is widely credited as one of the first action-adventure games on a home console. The genre — combining exploration, item collection, puzzle solving, and combat in real time — didn’t exist as a recognized category in 1980. Adventure created the template that subsequent action-adventures followed: The Legend of Zelda (1986), Metroid (1986), and the entire decades-long lineage of action-adventure games owe Adventure a clear debt.

The specific innovations that mattered: room-by-room exploration with persistent state, an inventory of items that the player carried between rooms, environmental hazards that interacted with the player’s items, and a clear goal that the player worked toward through exploration rather than linear progression. All of these are now genre defaults. In 1980, they were unprecedented on a home console.

The Easter egg

Adventure contains what is widely cited as the first known Easter egg in a commercial video game. Hidden in a specific room, accessible only through a precise sequence of actions involving a tiny single-pixel item Robinett added to the game, was a screen displaying the text “Created by Warren Robinett.”

The story of why is well-documented. Atari at the time did not credit individual programmers on its games — the company’s official line was that the games were team products, and crediting individuals would make those individuals targets for poaching by competitors. Several programmers, including Robinett, felt this was unfair. Robinett’s response was to hide his credit inside the game itself, where Atari couldn’t easily edit it out without recompiling the cartridge.

The Easter egg was discovered by a player after the game shipped. Atari’s response, by various accounts, was annoyance — but the practice of hiding Easter eggs in games was inspired by the precedent. The term “Easter egg” for hidden game content traces directly to the Adventure example. The Adventure Wikipedia article covers the Easter egg history in detail.

The technical achievement

Building Adventure on the 2600 was a serious technical accomplishment. The system had no built-in support for multi-room games, no concept of “current room” in its graphics architecture, and no easy way to persist item positions between screens. Robinett built all of that himself in the bytes available.

The dragons’ AI is one of the most-discussed pieces of the implementation. Each dragon had a state machine: roaming, pursuing, eating, dead. The state machine determined how the dragon moved and reacted to the player. By the standards of 1980 home games, even simple enemy AI was unusual. Adventure’s dragons had personality — Yorgle was the most cowardly, Rhindle the most aggressive — and that personality came from the state machine logic, not from any explicit characterization.

The commercial reception

Adventure was a commercial success for Atari. The game sold over a million copies and became one of the popular 2600 titles of the early 1980s. Critically, it was praised for its ambition, though some reviews noted the crude visuals (a fair complaint that Robinett would have agreed with — he was working with what he had).

The game’s reputation grew over time. As the action-adventure genre developed through the 1980s and 1990s, Adventure was retrospectively recognized as its starting point. Modern retro-gaming retrospectives consistently rank Adventure among the most important Atari 2600 titles and one of the most influential games of its era.

The legacy

Adventure’s influence is hard to overstate. The game shaped the entire action-adventure genre. The Easter egg tradition began with it. The notion that a home console could support a “world” — multiple rooms with persistent state — was demonstrated by Adventure first.

Warren Robinett went on to work on a variety of projects after Adventure, including educational software (he was a co-founder of The Learning Company). He has occasionally spoken in public retrospectives about the game’s development and the Easter egg. His name appears in the credits of Ready Player One, the 2018 film, because the Adventure Easter egg is a major plot point — the film’s MacGuffin is a hidden Easter egg in a fictional video game, and the references to Adventure are explicit.

Modern availability

Adventure has been re-released in many Atari compilation packs over the decades and is available through emulation. The game also appears in Atari Vault and similar modern collections on current platforms. Browser-friendly fan reimplementations exist as well — the basic mechanics are simple enough that recreating the game in HTML5 is a common indie project.

For a much simpler kind of single-screen distraction with no dragons or hidden Easter eggs, the Chrome Dino game is one tab over.

Why Adventure still matters

Adventure matters because it demonstrated that home console games could be more than reflex challenges. The player wasn’t just dodging; the player was thinking — choosing routes, managing inventory, planning approaches to enemies. That cognitive engagement was a small revolution in 1980, and the genre that followed leaned into it heavily.

The Easter egg matters as a piece of game-culture history. Every hidden message, every cheat code, every developer in-joke buried in a modern game traces back, in a sense, to Robinett’s decision to hide his name in a small castle room. The tradition is as old as commercial gaming, and Adventure started it.

Frequently asked questions

Who made Adventure on the Atari 2600?

Adventure was developed by Warren Robinett at Atari and released in 1980. Robinett designed and programmed the game, including the famous hidden Easter egg.

What’s the Easter egg in Adventure?

Hidden in a specific room, accessible only through a precise sequence of actions, is a screen displaying the text “Created by Warren Robinett.” It’s widely cited as the first known Easter egg in a commercial video game.

Why did Robinett hide his name in the game?

Atari’s policy at the time did not credit individual programmers on its games. Several Atari developers felt this was unfair. Robinett’s response was to hide his credit inside the game itself, where it would be hard for Atari to remove without recompiling.

What genre is Adventure?

It’s widely considered one of the first action-adventure games on a home console. The genre combines exploration, item collection, puzzle solving, and real-time combat — elements that later defined games like The Legend of Zelda.

How many dragons are in Adventure?

There are three dragons: Yorgle (yellow, the most cowardly), Grundle (green, moderately aggressive), and Rhindle (red, the most aggressive). Each has slightly different behavior patterns and difficulty.

The takeaway

Adventure is one of the most important games in console gaming history. It invented the action-adventure genre, hid the first Easter egg, and demonstrated that home video games could support real exploration and inventory mechanics. Forty-plus years later, its design DNA is in every action-adventure game made since. For a much simpler kind of home-game distraction, the Chrome Dino game is a tab over — single screen, no dragons.

Related: The History of Pitfall: Activision’s Atari 2600 Hit · The History of Fancy Pants Adventure · The History of Poptropica (Kids’ Adventure Web Hub)