Timeline/Sonic the Hedgehog/Unified version

1. *Sonic the Hedgehog* (1991) (16-bit)
2. *Sonic the Hedgehog CD*
3. *Sonic the Hedgehog 2*
4. *Sonic the Hedgehog 3*
5. *Sonic & Knuckles*
6. *Sonic the Hedgehog* (1991) (8-bit)
7. *Sonic the Hedgehog 2* (8-bit)
8. *SegaSonic the Hedgehog*
9. *Tails’ Skypatrol*
10. *Sonic Drift*
11. *Sonic Spinball*
12. *Sonic Chaos*
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. *Sonic 3D Blast*
22. *Sonic R*
23. *Sonic Mania*
24. *Sonic the Hedgehog* (IDW) (Classic portions)
25. *Sonic Superstars*
26. *Sonic Generations* (Console version)
27. *Sonic the Hedgehog 4*
	1. *Episode I*
	2. *Episode II*
28. *Sonic Advance*
29. *Sonic Advance 2*
30. *Sonic Adventure*
	1. *Chao in Space*
31. *Sonic Shuffle*
32. *Sonic Adventure 2*
33. *Sonic Heroes*
34. *Sonic Riders*
35. *Shadow the Hedgehog*
36. *Sonic Battle*
37. *Sonic Advance 3*
38. *Sonic Prime*
39. *Sonic the Hedgehog* (2006)
40. *Sonic Rush*
41. *Sonic Rush Adventure*
42. *Sonic Rivals*
43. *Sonic Rivals 2*
44. *Sonic Riders: Zero Gravity*
45. *Sonic and the Secret Rings*
46. *Sonic Unleashed*
	1. *Sonic: Night of the Werehog*
47. *Sonic and the Black Knight*
48. *Sonic Free Riders*
49. *Sonic Colors* Comics
50. *Sonic Colors*
	1. *Ultimate*
		1. *Rise of the Wisps*
	2. DS version
51. *Sonic Generations*  (Console version)
52. *Sonic Lost World* prequel comic
53. *Sonic Lost World*
54. *Sonic Forces* digital comics
55. *Sonic Forces*
56. *Team Sonic Racing*
	1. *Team Sonic Racing* one-shot comic
	2. *Team Sonic Racing Overdrive*
57. Sonic Channel: *Otherworld Comedy*
58. *Sonic Frontiers*
59. *The Murder of Sonic the Hedgehog*
60. *Sonic Dream Team*

\*Modern *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.

## References

1. ↑ 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.
2. ↑ Tails meets Sonic immediately prior to the game's events, so it must occur before 8-bit *Sonic 2*
3. ↑ 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.
4. ↑ *Sonic Origins* shows the order of the main classic games is *Sonic 1*, *Sonic CD*, *Sonic 2*, *Sonic 3 & Knuckles* uninterrupted
5. ↑ 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*
6. ↑ 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"
7. ↑ 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\*
8. ↑ Only features a few characters
9. ↑ Knuckles does not help Sonic and Tails, implying it is early in the classic timeline
10. ↑ Knuckles does not help Sonic and Tails, implying it is early in the classic timeline
11. ↑ 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*
12. ↑ Metal Sonic was repaired from a prior battle just before this game, so it must occur after a Metal Sonic defeat
13. ↑ 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.
14. ↑ 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*.
15. ↑ 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*.
16. ↑ Metal Sonic has his Plasma Pulse Attack, so it must occur after *Chaotix*
17. ↑ Has Sonic, Tails and Knuckles work together again. Is a 3D title so presumably is near the end of the classic timeline
18. ↑ Eggman builds Metal Knuckles and Tails Doll, who are fully functional at the end of *R* yet are not used in any other game prior to *Superstars*, implying *R* is at the end of the classic portion of the timeline
19. ↑ Implied to be after all old classic games by various sources.
20. ↑ 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.
21. ↑ ZERO is in this game but was destroyed in *Adventure*, so its before that game. Debut of Cream, so its prior to *Heroes*
22. ↑ Ties in with *Adventure* due to featuring Gamma appearing after his destruction thanks to Maginaryworld
23. ↑ Shadow's first appearance following *Adventure 2*
24. ↑ Shadow has his memories back. Omega is mentioned
25. ↑ The exact placement of *Sonic Prime* is unknown, with it only being confirmed to occur at some point after *Advance 3*.
26. ↑ Eggman and Nega get along, and people believe the lie that Nega is his Sol counterpart, so it must be before *Rivals*
27. ↑ Eggman Nega is defeated in this game, so it must occur after *Rush*
28. ↑ Sonic and Amy are supposed to go on a date in this game, which is something that was arranged (optionally) in *Unleashed*
29. ↑ Should be a while after *Sonic Riders* since it features a new World Grand Prix
30. ↑ Takes place on Sonic's 20th birthday. No games can occur between *Colors* and *Generations*