The History of Pokemon Games (Red and Blue to Now)

Pokemon launched as Pocket Monsters Red and Green on the Game Boy in Japan in 1996, and within a few years had become the largest media franchise in the world. The history of Pokemon games is the story of Satoshi Tajiri’s childhood interest in insect collecting, the developer Game Freak’s slow climb to mainstream attention, and a monster-catching formula that has proved unusually portable across hardware generations.

The designer’s origin

Satoshi Tajiri founded Game Freak in 1989 as a video game development studio that grew out of an earlier fanzine of the same name. He had been interested in insect collecting as a child, and the experience of catching, trading, and observing creatures with friends shaped the core concept that became Pokemon. The original pitch — a game in which players collected monsters and traded them with friends using the Game Boy’s Link Cable — was a direct translation of that childhood interest.

Tajiri pitched the concept to Nintendo, where Shigeru Miyamoto helped shepherd it through a long development process. The game took roughly six years from initial concept to release, an unusually long cycle for a Game Boy title and one that nearly bankrupted Game Freak before the launch.

The Game Boy and trading

The Game Boy was an unusual platform for an ambitious RPG in 1996. The hardware was seven years old by then, monochrome, and considered well past its prime. But Tajiri’s design depended on one specific feature: the Link Cable, which let two Game Boys exchange data. That cable was the technical foundation of the Pokemon idea. Two players could trade monsters with each other, and certain monsters could only be obtained through trading — not catching.

The decision to release two versions of the game simultaneously, with slightly different available monsters in each, was directly tied to the trading mechanic. Red and Green (later Red and Blue internationally) each had monsters the other lacked. To complete the collection — the Pokedex — players had to find a partner with the other version and trade.

The original gameplay

You play a young trainer who leaves home to catch and battle Pokemon across the Kanto region. The world is shown from a top-down perspective, similar to early Zelda or Dragon Quest. You walk through tall grass to encounter wild Pokemon, which you weaken and capture with Poke Balls. Captured Pokemon battle other trainers in turn-based combat, leveling up, learning new moves, and eventually evolving into stronger forms.

The plot follows a journey through eight gyms — themed battle locations with progressively harder leaders — culminating in the Pokemon League. A parallel storyline involves the criminal organization Team Rocket, which the player disrupts repeatedly. The original game had 151 Pokemon to catch, a number widely known as the original generation.

The international release

The original Japanese release in 1996 was a slow-growing success that became a phenomenon over its first year. The Pokemon anime debuted in Japan in 1997, dramatically accelerating the brand’s reach. By the time the games reached North America in September 1998 as Pokemon Red and Blue, the brand was already established internationally through cards, anime, and merchandise.

The North American launch was a coordinated cross-media event involving the games, the anime, and the trading card game. The strategy worked. Pokemon became one of the dominant pop-culture phenomena of the late 1990s, particularly among children and teenagers. The full early-franchise history is documented on the Pokemon Wikipedia article.

Generations and platforms

Pokemon’s release model has been remarkably consistent. Each main generation introduces a new region, roughly 100 to 150 new Pokemon, and minor mechanical refinements, while keeping the core capture-train-battle loop intact.

• Generation I: Red, Blue, Yellow (Game Boy, 1996-1998)
• Generation II: Gold, Silver, Crystal (Game Boy Color, 1999-2001)
• Generation III: Ruby, Sapphire, Emerald (Game Boy Advance, 2002-2005)
• Generation IV: Diamond, Pearl, Platinum (Nintendo DS, 2006-2009)
• Generation V: Black, White and sequels (Nintendo DS, 2010-2012)
• Generation VI: X, Y (Nintendo 3DS, 2013)
• Generation VII: Sun, Moon (Nintendo 3DS, 2016)
• Generation VIII: Sword, Shield (Nintendo Switch, 2019)
• Generation IX: Scarlet, Violet (Nintendo Switch, 2022)

Each generation has introduced its own audience and tied to a parallel wave of anime, cards, and merchandise. The franchise has remained consistent enough that a player who left after Red and Blue can return decades later and recognize the structure.

Pokemon Go and mobile

Pokemon Go launched in July 2016, developed by Niantic in collaboration with The Pokemon Company. The augmented-reality mobile title used GPS data to place Pokemon in real-world locations, asking players to walk to find and catch them. The release was a global cultural event — for several weeks in 2016, Pokemon Go was the most-downloaded mobile game in the world.

The game has remained active through subsequent years and has integrated with mainline releases through cross-platform trading and event tie-ins. Pokemon Go also expanded the franchise’s audience to demographics that had not engaged with the handheld games — adults, casual mobile players, and lapsed fans returning for nostalgia.

The wider franchise

Pokemon spin-offs include Pokemon Stadium, Pokemon Snap, Pokemon Pinball, Pokemon Ranger, Pokemon Mystery Dungeon, Pokemon Conquest, Detective Pokemon, and many others. The Pokemon Trading Card Game has been continuously published since 1996. The anime has produced over a thousand episodes. Pokken Tournament brought the franchise to fighting games. Pokemon Unite brought it to mobile MOBAs.

The cumulative revenue from games, cards, merchandise, anime licensing, and film puts Pokemon at or near the top of all-time media franchise rankings. The mainline game series remains the franchise’s creative core, with each new entry expected to anchor the surrounding ecosystem.

Pokemon in the browser

Direct browser ports of mainline Pokemon games do not exist legally — Nintendo enforces aggressively against unauthorized ports. Web-based Game Boy emulators host the original ROMs, and fan-made Pokemon-inspired browser games — including the popular Pokemon Showdown battle simulator — explore the franchise’s mechanics legally. For more on the legitimate browser-playable side, see our roundup of the best browser Pokemon games. And for a one-button arcade pickup with no monsters to catch, the Chrome Dino game is the obvious counterpart.

Why the franchise endures

Pokemon’s longevity comes from the alignment between its mechanics and its emotional pull. The core loop — discover, catch, train, evolve — produces a sense of personal collection that few other franchises match. Each player’s team becomes uniquely theirs. The trading mechanic embeds social connection in the design. The generational refresh model keeps the franchise feeling current without disrupting the core experience.

Game Freak has been criticized at points — for technical issues in recent entries, for an aging engine, for repetition in design — but each new generation still sells in the tens of millions. The audience has proven willing to follow the franchise through hardware shifts and design refinements without abandoning the core formula.

Frequently asked questions

When was the first Pokemon game released?

The first Pokemon games — Pocket Monsters Red and Green — were released on the Game Boy in Japan in February 1996. The international releases as Pokemon Red and Blue followed in 1998 and 1999.

Who created Pokemon?

Satoshi Tajiri created Pokemon at Game Freak. He drew on his childhood interest in insect collecting as the conceptual basis for the catch-and-trade mechanic.

How many Pokemon are there now?

As of the most recent main-series release, the total number of distinct Pokemon species is over 1,000. The number grows with each new generation as new species are introduced.

Why are there always two versions of each Pokemon game?

The two-version structure traces directly to the original 1996 design: each version has slightly different available Pokemon, and players need to trade with someone owning the other version to complete the Pokedex. The structure has been retained across all subsequent generations.

Is Pokemon Go related to the main games?

Yes. Pokemon Go was developed by Niantic in collaboration with The Pokemon Company and Nintendo. It uses the same Pokemon species and shares some cross-platform trading features with mainline releases on the Nintendo Switch.

The takeaway

Pokemon turned a childhood interest in collecting insects into one of the largest media franchises in the world, and the games that started it all — Red and Blue on the Game Boy — still define the franchise’s identity. The generational release model has kept the formula relevant for nearly three decades. For a simpler one-button arcade pickup with no Pokeballs required, the T-Rex Runner is the obvious browser counterpart.