GameTimeline

Release & story order

Sonic timeline

Sonic the Hedgehog from the 1991 Genesis original through Sonic X Shadow Generations—US release dates, Sega's official story placement (Sonic CD between Sonic 1 and 2, one unified timeline), and FAQ for handheld chapters, Sonic '06, and spin-offs. Kart and hoverboard racers live on the separate Sonic racing timeline.

Updated July 2026

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Release order Story order

Release order

When Sega shipped each main platformer and major 3D chapter—Genesis (1991) through Sonic X Shadow Generations (2024), with Sonic Origins (2022) as a remaster bundle row. Racing spin-offs (Sonic R through CrossWorlds) are on Sonic racing timeline, not numbered rows here.

  • Newcomers → Sonic Mania or Sonic Frontiers depending on 2D vs 3D taste; Sonic Origins bundles the four Classic games
  • Classic fans → Release order from 1991 Genesis through Sonic 3 & Knuckles, then Mania or Origins remasters
  • Modern 3D arc → Adventure → Adventure 2 → Heroes → Unleashed → Colors → Sonic X Shadow Generations → Lost World → Forces → Frontiers
  • Skip Shadow the Hedgehog and Sonic '06 unless you want every mainline chapter—both are divisive
  • Racing only → Sonic racing timeline (Team Sonic Racing, CrossWorlds, Riders, and more)
Story order tips

Sega's official timeline (2024 site update, reinforced by Sonic Origins story mode) uses one story world—Classic and Modern Sonic share the same setting. Classic path: Sonic CD between Sonic 1 and 2, then Mania and Superstars, Sonic 4. Modern path: Adventure through Frontiers. Handheld Advance/Rush/Battle chapters fit between Adventure 2 and Unleashed—see FAQ, not Story rows here.

  • Classic story path: Sonic 1 → Sonic CD → Sonic 2 → Sonic 3 & Knuckles → Mania → Superstars → Sonic 4 Episodes I & II
  • Modern story path on this page: Adventure → Adventure 2 → Heroes → Shadow → Unleashed → Colors → Generations (via Sonic X Shadow Generations) → Lost World → Forces → Frontiers
  • Completionists: insert GBA Advance 2 between Adventure 2 and Heroes; GBA Battle after Shadow; GBA Advance 3 after Battle; DS Rush/Rush Adventure around Sonic '06—exact Rush vs Rivals order is debated
  • One timeline only—Mania and Forces Classic segments are the same Sonic, not a parallel universe (confirmed 2024)
  • Sonic '06 happens then is erased; Sonic Origins confirms CD order but is not its own lore chapter—play the four Classic games inside it

Timeline

When each game was released. Click a game for platforms, dates, and where it fits in your playthrough.

Release order

  1. Sonic the Hedgehog

    Sonic the Hedgehog

    GenesisPlatformerMainlineClassic

    Blue blur debuts—Green Hill Zone and the first fight with Dr. Robotnik.

    Overview
    Sonic Team's answer to Mario—raw speed, loop-de-loops, and attitude on Sega Genesis.
    In-game setting
    South Island adventure; collect Chaos Emeralds; establishes Sonic vs Eggman rivalry.
    Should you play it?
    Franchise foundation. Still playable via Origins, Mega Drive Classics, or Nintendo Switch Online Sega catalog.
    Release date
    US Genesis launch June 23, 1991. Countless re-releases; included in Sonic Origins (2022).
  2. Sonic the Hedgehog 2

    Sonic the Hedgehog 2

    GenesisPlatformerMainlineClassic

    Tails joins—Emerald Hill, Chemical Plant, and the Death Egg.

    Overview
    Spin Dash, two-player split-screen, and bigger zones pushed Genesis hardware.
    In-game setting
    West Side Island; introduces Miles "Tails" Prower as Sonic's partner.
    Should you play it?
    Essential Classic entry. Story order places Sonic CD before this game—see Story tab.
    Release date
    US launch November 24, 1992. Re-released on modern platforms and inside Sonic Origins.
  3. Sonic the Hedgehog CD

    Sonic the Hedgehog CD

    Sega CDPlatformerMainlineClassic

    Little Planet, Metal Sonic, and time-travel stages.

    Overview
    Time-travel mechanic and CD audio—developed alongside Sonic 2 but released later.
    In-game setting
    Amy Rose and Metal Sonic debut; "Sonic Boom" opening theme.
    Should you play it?
    Release order comes after Sonic 2; official story order places it between Sonic 1 and 2.
    Release date
    US Sega CD launch November 19, 1993. Steam and Origins include remastered builds.
  4. Sonic 3 & Knuckles

    Sonic 3 & Knuckles

    GenesisPlatformerMainlineClassic

    Knuckles the Echidna—Angel Island, Hydrocity, and lock-on combined campaign.

    Overview
    Sonic 3 (Feb 1994) and Sonic & Knuckles (Oct 1994) lock together into one epic via the cart pass-through.
    In-game setting
    Knuckles debut; Flying Battery and Lava Reef; Death Egg saga conclusion on Genesis.
    Should you play it?
    Treat as one Classic chapter. Origins presents the lock-on experience as a single game.
    Release date
    Sonic 3 US February 2, 1994; Sonic & Knuckles US October 18, 1994. Play combined via Origins or lock-on hardware.
  5. Sonic Adventure

    Sonic Adventure

    DreamcastPlatformerMainline3D

    First 3D mainline—Chaos, the Master Emerald, and six character stories.

    Overview
    Dreamcast showcase with Adventure Fields, Chao Garden, and Big's fishing (yes, really).
    In-game setting
    Introduces Chaos, Tikal, and the Knuckles tribe backstory on the Mystic Ruins.
    Should you play it?
    Modern era begins here in story order (after Classic and Sonic 4). Gameplay feels dated—DX is the usual buy.
    Release date
    US Dreamcast launch September 9, 1999. Sonic Adventure DX ports on GameCube and later PC/consoles.
  6. Sonic Adventure 2

    Sonic Adventure 2

    DreamcastGameCubePlatformerMainline3D

    Hero vs Dark—Shadow the Hedgehog and the Space Colony ARK.

    Overview
    10th anniversary—playable hero and villain sides; introduces Shadow and Rouge.
    In-game setting
    Gerald Robotnik, Maria, and Biolizard set up years of franchise lore.
    Should you play it?
    Required for understanding Shadow. Chao and kart racing side content optional.
    Release date
    US Dreamcast June 18, 2001. Sonic Adventure 2 Battle on GameCube adds multiplayer and tweaks.
  7. Sonic Heroes

    Sonic Heroes

    GameCubePS2XboxPCPlatformerMainline3D

    Team-based 3D platformer—Team Sonic, Dark, Rose, and Chaotix.

    Overview
    Three-character teams with formation switching on multi-platform 3D stages.
    In-game setting
    Metal Sonic returns as Neo Metal Sonic; bridges Adventure era to Shadow and '06.
    Should you play it?
    Campy tone but mainline in Sega's timeline. Good stop before Shadow or Unleashed paths.
    Release date
    US launch January 5, 2004. Available on Steam and legacy consoles.
  8. Shadow the Hedgehog

    Shadow the Hedgehog

    GameCubePS2XboxPlatformerMainline3D

    Shadow solo shooter-platformer—guns, branching paths, and multiple endings.

    Overview
    Mature-toned spin on the formula with vehicles and weapons—polarizing among fans.
    In-game setting
    Fills Shadow's backstory between Adventure 2 and Sonic '06 in official placement.
    Should you play it?
    Optional for casual fans; lore seekers play it between Heroes and '06 on Story order.
    Release date
    US launch November 15, 2005. Not on modern digital stores—disc/emulation only.
  9. Sonic the Hedgehog

    Sonic the Hedgehog

    Xbox 360PS3PlatformerMainline3D

    15th-anniversary "Sonic '06"—Sonic, Shadow, and Silver in Soleanna.

    Overview
    Ambitious open-hub 3D design hampered by launch bugs—infamous in franchise history.
    In-game setting
    Introduces Silver the Hedgehog and Princess Elise; Solaris storyline later retconned.
    Should you play it?
    Skip unless completing Story order—Sega's timeline treats its events as erased after the ending.
    Release date
    US launch November 14, 2006 on Xbox 360 and PlayStation 3. Never re-released digitally.
  10. Sonic Unleashed

    Sonic Unleashed

    PS2PS3Xbox 360WiiPlatformerMainline3D

    Werehog nights, boost days—planet split across hub worlds.

    Overview
    Modern boost daytime stages plus slower Werehog combat—Chip and Dark Gaia lore.
    In-game setting
    Sets up Light Gaia / Dark Gaia mythology referenced in Sega's official prehistoric timeline.
    Should you play it?
    Fan-favorite boost gameplay in day stages. Story continues Modern arc after '06's reset.
    Release date
    US launch November 18, 2008. PS3/Xbox 360 versions differ from Wii/PS2.
  11. Sonic the Hedgehog 4: Episode I

    Sonic the Hedgehog 4: Episode I

    WiiPS3Xbox 360PCMobilePlatformerMainlineClassic

    Retro-styled sequel project—continues from Sonic 3 & Knuckles in story placement.

    Overview
    Episode-based digital return to classic physics—"Project Needlemouse" during development.
    In-game setting
    Little Planet revisit ties toward Sonic CD; Episode II completes the arc.
    Should you play it?
    Story order slots both episodes after Superstars and before Adventure—see Story tab.
    Release date
    Worldwide digital launch October 7, 2010. Delisted from some stores—PC keys still circulate.
  12. Sonic Colors

    Sonic Colors

    WiiDSPlatformerMainline3D

    Wisp powers on Eggman's interstellar amusement park.

    Overview
    Color Powers and tighter focus than Unleashed—fan favorite Modern entry.
    In-game setting
    Introduces Yacker and the Wisps—referenced again in Generations and Frontiers.
    Should you play it?
    Strong Modern starting point. Ultimate edition replaces original on most stores.
    Release date
    US Wii launch November 16, 2010. Sonic Colors: Ultimate remaster 2021 on modern consoles.
  13. Sonic Generations

    Sonic Generations

    Xbox 360PS3PC3DSPlatformerMainline3D

    20th anniversary—Classic Sonic meets Modern Sonic across era-spanning stages.

    Overview
    Dual gameplay styles in one celebration tour of franchise history.
    In-game setting
    Time Eater story brings Classic and Modern Sonic together in one adventure.
    Should you play it?
    Buy Sonic X Shadow Generations for the remastered version on current hardware.
    Release date
    US launch November 1, 2011. Remastered inside Sonic X Shadow Generations (2024).
  14. Sonic the Hedgehog 4: Episode II

    Sonic the Hedgehog 4: Episode II

    Xbox 360PS3PCMobilePlatformerMainlineClassic

    Episode II—Sonic and Tails co-op; Little Planet finale.

    Overview
    Co-op classic stages and Metal Sonic boss rush conclusion to the Episode I arc.
    In-game setting
    Completes the Sonic 4 bridge between Classic era and Adventure in Sega's timeline.
    Should you play it?
    Play immediately after Episode I in both orders.
    Release date
    Worldwide digital launch May 15, 2012.
  15. Sonic Lost World

    Sonic Lost World

    Wii U3DSPCPlatformerMainline3D

    Deadly Six on the Lost Hex—parkour and spherical stages.

    Overview
    Nintendo-exclusive window then PC port—emphasis on vertical level design.
    In-game setting
    Continues Modern Sonic after Colors/Generations in official story order.
    Should you play it?
    Mixed reception but mainline. Optional if you prefer Unleashed → Colors → Forces path.
    Release date
    US Wii U launch October 29, 2013. PC version 2015.
  16. Sonic Mania

    Sonic Mania

    SwitchPS4Xbox OnePCPlatformerMainlineClassic

    Fan-dev led 2D masterpiece—new zones plus remixed classics.

    Overview
    Christian Whitehead and Headcannon deliver pixel-perfect Classic sequel energy.
    In-game setting
    Slots after Sonic 3 & Knuckles in Sega's official story timeline.
    Should you play it?
    Best entry for newcomers who want fast 2D platforming.
    Release date
    Worldwide launch August 15, 2017. Sonic Mania Plus (2018) adds Encore Mode and Mighty/Ray.
  17. Sonic Forces

    Sonic Forces

    SwitchPS4Xbox OnePCPlatformerMainline3D

    Custom Avatar joins Modern Sonic—Eggman wins, resistance fights back.

    Overview
    Three playstyles (Classic, Modern, Avatar) in a short modern campaign—Classic Sonic is the same character, not an alternate universe.
    In-game setting
    Infinite and Phantom Ruby plot—Phantom Ruby links back to Mania; sets tone before Frontiers.
    Should you play it?
    Divisive but listed in Sega's official story order before Frontiers.
    Release date
    Worldwide launch November 7, 2017.
  18. Sonic Origins

    Sonic Origins

    SwitchPS4PS5Xbox OneXbox Series X|SPCCompilationRemaster

    Four-game Classic bundle with new animations—Sonic 1, CD, 2, Sonic 3 & Knuckles.

    Overview
    31st anniversary compilation—story mode confirms Sonic CD between Sonic 1 and 2.
    In-game setting
    Not a new chapter—purchase instead of hunting individual Classic ports.
    Should you play it?
    Release-history row only. Play the included games on Story order, not "Origins" as a plot step.
    Release date
    Worldwide launch June 23, 2022. Origins Plus (2023) adds Game Gear titles.
  19. Sonic Frontiers

    Sonic Frontiers

    SwitchPS4PS5Xbox OneXbox Series X|SPCPlatformerMainline3D

    Open-zone Starfall Islands—Cyberspace stages and Titan bosses.

    Overview
    First open-zone Sonic—boost exploration plus traditional stages in Cyberspace.
    In-game setting
    Ancients lore ties into Sega's official prehistoric timeline; Sage and The End.
    Should you play it?
    Current Modern endpoint on this page. Good 3D entry after Colors or Generations remaster.
    Release date
    Worldwide launch November 8, 2022. Free updates added harder bosses and photo mode.
  20. Sonic Superstars

    Sonic Superstars

    SwitchPS4PS5Xbox OneXbox Series X|SPCPlatformerMainlineClassic

    2D mainline with Trip the Sungazer—Northstar Islands adventure.

    Overview
    First 2D mainline with four-player co-op; Frostick and Arzest art direction.
    In-game setting
    Official timeline places it after Mania in Classic continuity.
    Should you play it?
    Pairs with Mania for 2D fans; story slots before Sonic 4 episodes.
    Release date
    Worldwide launch October 17, 2023.
  21. Sonic X Shadow Generations

    Sonic X Shadow Generations

    SwitchPS4PS5Xbox OneXbox Series X|SPCPlatformerMainline3D

    Generations remaster plus new Shadow Generations campaign and Doom Powers.

    Overview
    Dual campaigns—remastered Sonic Generations and brand-new Shadow story.
    In-game setting
    Shadow side expands ARK lore; bundled Generations replaces 2011 original on new buys.
    Should you play it?
    Buy this instead of standalone Generations on current consoles.
    Release date
    Worldwide launch October 25, 2024 per Sega press release.

FAQ

Release vs story order, unified Classic/Modern timeline, Sonic CD placement, handheld Advance/Rush chain, Sonic '06, Origins bundle, and what we leave off (Boom, comics, mobile).

Release order

Optional & spin-offs

Other timelines

This page — Sega platformer release and official story order: Classic Genesis through Modern Frontiers, Sonic CD placement, handheld FAQ, and Sonic '06. Best for playing the main Sonic saga.

Sonic racing — Sonic R through CrossWorlds, Riders trilogy, All-Stars Racing Transformed, and Team Sonic Racing. Best for kart and hoverboard spin-offs—no platformer story required.

Sonic film & TV — Paramount movies and Knuckles series. Separate cinematic universe from games.

More timelines

Other release-order and story-order guides on this site.