Timeline/Sonic the Hedgehog/Split version

*Sonic Origins*

1. *Sonic the Hedgehog* (1991)
	1. 16-bit
	2. 8-bit
2. *Sonic the Hedgehog CD*
3. *Sonic the Hedgehog 2*
4. *Sonic the Hedgehog 3*
5. *Sonic & Knuckles*

\**Sonic the Hedgehog* (IDW) starts shortly after *Sonic Forces* and continues on with newer games like *Team Sonic Racing* occurring off-panel at undefined points. *TailsTube* occurs after *Sonic Forces*, with the third episode being right before *Sonic Frontiers*, and then later episodes taking place afterwards. *Sonic Prime* placement is unknown.

### Classic

1. *Sonic Generations*
	1. Console version
	2. 3DS version
2. *SegaSonic the Hedgehog*
3. *Sonic the Hedgehog 2* (8-bit)
4. *Tails’ Skypatrol*
5. *Sonic Labyrinth*
6. *Sonic Drift*
7. *Sonic Spinball*
8. *Sonic Patrol Car*
9. *SegaSonic Popcorn Shop*
10. *Sonic the Animation*
11. *Sonic Chaos*
12. *Sonic Mania*
13. *Sonic Forces*
14. *Sonic Mania Adventures*
15. *Sonic the Hedgehog Triple Trouble*
16. *Knuckles’ Chaotix*
17. *Tails Adventure*
18. *Sonic Blast*
19. *Sonic Drift 2*
20. *Sonic the Fighters*
21. *SegaSonic Cosmo Fighter*
22. *Sonic 3D Blast*
23. *Sonic R*
24. *Sonic the Hedgehog 30th Anniversary Special*

## References

1. ↑ Bin is Bean's father, so it must occur long before the series
2. ↑ As shown in *Sonic Origins*, occurs in between *Sonic* and *Sonic 2*. Tails' appearance as a bonus has him say "See you next game", indicating *CD* precedes *Sonic 2* chronologically.
It must occur before *Sonic 3*, as *Sonic 4* and *Sonic Mania* are both indicated to follow on from *Sonic & Knuckles* in their respective timelines, with no room in-between for *CD*, and Metal Sonic is trapped on Little Planet on *CD* until *Sonic 4*/*Mania*.
This also indicates that every classic game featuring Metal Sonic must occur exclusively in the classic timeline following *Mania*, and cannot occur in the modern timeline as Metal Sonic is not rescued until Sonic, Tails and Eggman have become their modern incarnations.
3. ↑ Tails meets Sonic immediately prior to the game's events, so it must occur before 8-bit *Sonic 2*
4. ↑ Indicated to take place almost immediately after *Sonic 2*, Sonic still has the Chaos Emeralds from his prior adventure, the 2013 *Sonic 2* ends with Eggman crashing onto Angel Island and meeting Knuckles.
5. ↑ In the Modern timeline, no games occur between *Sonic & Knuckles* and *Sonic 4*, as Eggman's bio refers to how he lost the Master Emerald the last time he was up against Sonic
6. ↑ Sonic now has his modern appearance, Eggman starts off with his classic look but changes to his modern one by the end of the game. Eggman starts using old machines towards the end as is his main plan in *Sonic 4*, which this game has to immediately precede in order to fit into the modern timeline, which it must as Mecha Sonic Mk. I is being used, which he only would be if it Eggman did not have access to Metal Sonic.
7. ↑ Tails uses the original Tornado, so the game may occur before *Adventure* (an issue however is that Sonic is capable of grinding without specialized soap shoes as he does in *Adventure 2*). Eggman's scheme is more akin to his classic way of operating.
8. ↑ ZERO is in this game but was destroyed in *Adventure*, so its before that game. Debut of Cream, so its prior to *Heroes*
9. ↑ Ties in with *Adventure* due to featuring Gamma appearing after his destruction thanks to Maginaryworld
10. ↑ Shadow's first appearance following *Adventure 2*
11. ↑ Shadow is present at the tournament, so it must occur after *Heroes*. Metal Sonic is capable of talking so it must be before *Rivals*
12. ↑ Shadow has his memories back. Omega is mentioned
13. ↑ Tails believes a machine capable of inducing time travel to be impossible
14. ↑ Eggman and Nega get along, and people believe the lie that Nega is his Sol counterpart, so it must be before *Rivals*
15. ↑ Eggman Nega is defeated in this game, so it must occur after *Rush*
16. ↑ Occurs two years after Eggman's last defeat
17. ↑ While not intentional it works very well as a sequel to *Chronicles*. *Chronicles* ends with Eggman in position to dominate the world and Sonic in possession of all the Chaos Emeralds, the same as how *Unleashed* starts out.
18. ↑ Sonic and Amy are supposed to go on a date in this game, which is something that was arranged (optionally) in *Chronicles* and *Unleashed*
19. ↑ Should be a while after *Sonic Riders* since it features a new World Grand Prix
20. ↑ Takes place on Sonic's 20th birthday. No games can occur between *Colors* and *Generations*
21. ↑ Eggman tries to use the brainwashing device invented in *Colors* again
22. ↑ Eggman uses an Egg Dragoon. Dark Gaia's forces return
23. ↑ Occurs before *Mania* and *Knuckles' Chaotix* (as Knuckles does not know of Mighty in *Mania Adventures*). Mighty is referred to as being "part of the Classic world"
24. ↑ Hard to fit. Cannot occur before *Sonic 2* as that game is set immediately following Sonic and Tails' first meeting, whereas they are good friends by this point. Cannot fit between *Sonic 2* and *3* which occur immediately one after the other. Has to be before *Mania* due to Silver Sonics appearing as enemies in *Mania*
25. ↑ Features Tails' first adventure without Sonic.
\*Archie comics refer to is as occurring shortly after 8-bit *Sonic 2* - however this is a separate continuity from the games\*
26. ↑ Sonic is alone with no help from Tails - who has gone off on his own adventure (presumably *Tails' Skypatrol*) or Knuckles, indicating it is early in the classic timeline. Eggman realizing that Sonic's speed is the real issue also implies this should occur early.
27. ↑ Only features a few characters
28. ↑ Knuckles does not help Sonic and Tails, implying it is early in the classic timeline
29. ↑ Eggman is a minor nuisance, as in *Sonic the Animation*
30. ↑ Eggman is a minor nuisance, as in *Sonic the Animation*. Happens before *Mania*
31. ↑ Eggman uses the Rocket Shoes, presumably setting this before *Sonic Chaos*. Humans appear for the first and only time in the classic continuity. It takes place at the end of a year.
32. ↑ Knuckles does not help Sonic and Tails, implying it is early in the classic timeline
33. ↑ Manual says it occurs some time after *Sonic & Knuckles*
34. ↑ Eggman manipulates Knuckles again, indicating it should be as early as it possibly can be in the classic timeline, as Knuckles presumably would not fall for this after stopping Eggman so many times. Metal Sonic appears so it must be after *Mania*
35. ↑ Metal Sonic was repaired from a prior battle just before this game, so it must occur after a Metal Sonic defeat
36. ↑ The original Japanese backstory depicts it occurring prior to *Sonic 1*, but this contradicts Tails' backstory in *Sonic 2* and *Adventure*, so the American backstory is used instead. A power up based on Fang appears.
37. ↑ Sonic and Knuckles team up with no Tails presence, this could be explained by it occurring around the same time as *Tails Adventure*. The Silver Castle uses the original Death Egg design rather than one akin to the Death Egg II, implying it is before *Sonic the Fighters*.
38. ↑ The presence of Fang indicates it probably occurs after *Triple Trouble*, Metal Sonic is also fully operational. Confusingly, a Death Egg of unique design is also present, though it not being the original design could indicate it occurs after *Sonic Blast*.
39. ↑ Metal Sonic has his Plasma Pulse Attack, so it must occur after *Chaotix*
40. ↑ Sonic has a ship of a superior model to the Lunar Fox from *Sonic the Fighters*
41. ↑ Has Sonic, Tails and Knuckles work together again. Is a 3D title so presumably is near the end of the classic timeline
42. ↑ Eggman builds Metal Knuckles and Tails Doll, who are fully functional at the end of *R* yet are not used in any other game, implying *R* is at the end of the timeline