Using Japanese original release dates, the mainline Sonic games run from Sonic the Hedgehog (1991) through Sonic Superstars (2023). “Mainline” has no single official definition, so this guide focuses on Sonic-led action platformers and major entries that continue or mark the series’ central eras; it leaves out racers, sports, party games, compilations and other spin-offs. Sega’s history catalog covers a wider library than this list. Sega’s Sonic Channel history is the reference index for the chronology.
Dates below are Japanese releases unless noted. That distinction matters: the first Sonic game debuted in North America on June 23, 1991, before its Japanese Mega Drive release on July 26. Sega calls June 23 Sonic’s birthday because it was the first release. Sega’s title record lists the regional dates.
All mainline Sonic games in release order
This scoped list includes the major Sonic-led action platformers and saga-continuing entries. It includes Sonic CD as a major 2D platformer, although Sega describes it as a spin-off on the Sonic Origins page; readers applying a stricter definition can omit it. The two 1994 games, Sonic the Hedgehog 3 and Sonic & Knuckles, were originally released separately and later combined as Sonic 3 & Knuckles in Sonic Origins. Sega’s collection overview explains that relationship and identifies the four games it includes.
| Order | Game | Japanese release date | Place in the series |
|---|---|---|---|
| 1 | Sonic the Hedgehog | July 26, 1991 (Mega Drive) | The original 2D action platformer. Its first release was earlier in North America, on June 23, 1991. |
| 2 | Sonic the Hedgehog 2 | November 21, 1992 | The next main 2D platformer. |
| 3 | Sonic CD | September 23, 1993 | A major 2D platformer included here by editorial choice; Sega classifies it as a spin-off. |
| 4 | Sonic the Hedgehog 3 | May 27, 1994 | The first half of the original two-part release later combined as Sonic 3 & Knuckles. |
| 5 | Sonic & Knuckles | October 18, 1994 | The second half of that two-part release. |
| 6 | Sonic Adventure | December 23, 1998 | The series’ first fully 3D action game, according to Sega. Sega’s game page. |
| 7 | Sonic Adventure 2 | June 23, 2001 | A major follow-up in the 3D era. Sega’s game page. |
| 8 | Sonic Generations | December 1, 2011 | A 20th-anniversary game revisiting earlier adventures. Sega’s game page. |
| 9 | Sonic Superstars | October 17, 2023 | A recent 2D action entry; Sega lists PlayStation, Xbox, Nintendo Switch and PC platforms. Sega’s game page. |
Why the release order depends on region
The table uses Japanese release dates for a consistent chronology, not a claim that Japan was always the first region. The original Sonic the Hedgehog launched in North America on June 23, 1991, then in Japan for Mega Drive on July 26; its Game Gear version followed in Japan on December 28, 1991. If you mean “first Sonic game ever released,” use the North American date. If you want a Japan-based series chronology, use July 26 for the Mega Drive game.
#1 Best Overall
- A new Spin on a Classic: You've never played classic Sonic like this before!
- Multiply, swim up waterfalls, change form, and more with the powers of the Chaos Emeralds.
- lay as Sonic, Tails, Knuckles, and Amy Rose, using their unique abilities to explore and uncover new paths and secrets.
- More Friends, More Fun: Play with up to 3 other players in local Co-op and challenge players from around the world in Battle Mode!
How the series’ main eras fit together
Original 2D platformers
The early sequence begins with Sonic the Hedgehog and Sonic the Hedgehog 2, followed by Sonic CD and the two-part 1994 release. In Sonic Origins, Sega presents four foundational games: Sonic the Hedgehog, Sonic CD, Sonic the Hedgehog 2 and Sonic the Hedgehog 3 & Knuckles. It is a way to play several early games, not a collection of the complete mainline series. Sonic Origins overview.
The move to 3D
Sonic Adventure, dated December 23, 1998 in Japan, marks the shift to fully 3D action in Sega’s account. Sonic Adventure 2 followed on June 23, 2001. These are useful milestones when reading the chronology as a change in format, rather than simply a list of numbered sequels.
Rank #2
- READY, SET, WARP! Race across 24 tracks and warp to 15 CrossWorlds with Travel Rings, a unique gameplay mechanic that transports the iconic characters from the Sonic and SEGA universes into new dimensions. Use unpredictability to your advantage as you change the landscape of each race!
- RACE WITH THE BEST! Choose from 23 iconic Sonic characters, the largest roster of any Sonic racing game!
- MAKE IT YOURS: Mix and match between 45 unique original vehicles and 70 different gadgets to trick out your ride, level up your kart, and create the ultimate machine to match your racing style.
- GAIN THE ADVANTAGE WITH POWERFUL ITEMS! Dominate your opponents with 23 different items including returning favorites and all-new items like the Monster Truck!
- MULTIPLE WAYS TO PLAY: Gather with friends and play local split-screen in Grand Prix and the new party mode Race Park, compete against a community of players from around the world with up to 12 players online in World Match, or test your driving skills in Time Trials.
Retrospective and return to 2D
Sonic Generations revisited earlier adventures for the franchise’s 20th anniversary and arrived in Japan on December 1, 2011. Sonic Superstars, released in Japan on October 17, 2023, is a more recent 2D action entry.
What order should I play the Sonic games in?
Release order is a sensible option if you want to follow the series’ changing 2D and 3D styles. If your priority is trying several early platformers, Sonic Origins groups four foundational games, but it does not include the full series. For a quick entry point into the 3D era, start with Sonic Adventure; for a recent 2D entry, try Sonic Superstars. These are format-based starting suggestions, not a claim that every game requires the previous one.
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Rank #3
- 🕹️ Officially Licensed: This is an officially licensed SEGA Game Console, ensuring an authentic gaming experience. High resolution 3.5” full color display.
- 🎯 Games Included: Includes Sonic the Hedgehog and Sonic the Hedgehog 2. Capable of traveling at the speed of sound, Sonic is known for his speed, confident attitude and readiness for any and all types of adventure.
- 🕹️ Iconic Characters: A true hero, he calls upon his skills to save the world from Dr. Eggman. Sonic has a big heart and is always ready to help those in need.
- Headphone Jack: 3.5mm headphone jack lets you enjoy Sonic on the go on your own privately. Built-in speaker with volume control and adjustable screen brightness.
- Portable Gameplay: Powered by 4 AA batteries (not included) or by a USB-C cable (not included), this portable game lets you enjoy Sonic on-the-go.
Are Sonic games connected?
The games share a continuing franchise and recurring characters, but the scope of this list does not imply that every entry is a direct narrative sequel or that all stories must be played in release order. Choose release order to follow the games’ historical progression; choose by format if you mainly want to play 2D or 3D Sonic.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which Sonic games are mainline?
There is no single official boundary that makes every “mainline” list definitive. This guide uses a practical rule: include principal Sonic-led action platformers and major numbered or saga-continuing entries, while excluding racers, sports, party games, compilations and unrelated spin-offs. Sega’s Sonic Channel history catalogs a broader set of titles; it should not be read as a mainline-only list.
Quick Recap
Best Value
- 15 years in the making. After his 1991 debut, universal video game icon Sonic returns to his high-velocity roots to create a new dimension of entertainment.
- Speed Redefined. Utilizing next-gen technologies, light bloom, and environmental motion-blur effects, Sonic's breakneck speed and dazzling world come to life.
- Amigos and enemies. Sonic is joined by friends and foes from the franchise history, as well as a new character, Silver, whose supernatural powers will wreak mayhem on Sonic's plans!
- Realistic World. Using a next-generation physics engine, Sonic's moves, attacks and environment interaction respond realistically to opposing forces.
- Two different types of stages. Town stages where Sonic will be able explore vast environments and play various sub-missions, and Action stages where Sonic's blistering speed will be utilized in full effect.
Rank #4
- Past meets present in SONIC GENERATIONS! Modern and Classic Sonic team up to defeat Dr. Eggman and the Time Eater to restore their timeline to normal!
- Spin dash through a greatest-hits collection of 3D and 2D versions of iconic stages from past Sonic games, now with updated visuals and reworked cinematics
- In this new standalone campaign, Black Doom has reemerged and threatens to take over the world. Shadow must journey into his past, confront his memories, and unlock new dark powers to save the world.
- Harness Shadow's new Doom Powers to battle hordes of enemies and tackle platforming challenges like never before. Surf on water, fly over obstacles, and stop time with the return of Chaos Control!
- Rescue Chao hiding in every level, rack up the highest pinball score in the Casino Nights zone, and check out the museum for behind-the-scenes art, music, and more!
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