I couldn't believe my old post was literally one sentence — let me fix this right now because Persona is a saga worthy of more than a single line! We start with Shin Megami Tensei 1 (PS1, 1996), which birthed the whole mythos and still gets replayed. The real spin-off lineage begins with Soul Hackers (Dreamcast/PSP) — that's a must-play for fans of early style! Then we hit Persona 2: Eternal Punishment (PS1, 1999) and Innocent Sin, which are two games set in the same time period. The Golden Age opens with Persona G1 (Sega Saturn, 1998), then Persona3 Singularity on the PSP, Persona4 Arena Mix on PSVita/PS3, and Persona5 Dancing Wonderful Link Up! for everyone who wants to rhythm-game their way through the Phantom Thieves.
The modern era is where things get wild — we have Persona2: Falling Deeper (PSP) as a crossover, PersonaQ: The Battle of Two Worlds which combines P1 and P2's timelines in one team, and Persona4 Arena Ultimax on PS3/PSVita with that insane Chronos Trigger cross-over mode. Don't forget the rhythm spin-offs: Beat Evolution Challenge Edition Remix! (PSP), Rhythm Hero Trivia Quest (DS) for those who want to quiz their knowledge of P1-P2 lore, and Persona5 Strikethrough — no wait, that's not right; it's Dancing Wonderful Link Up! I already mentioned that. And we need Persona 3 Portable on PSP before moving into the definitive editions: Persona4 Golden (PSVita), and Persona5 Royal which added a third semester to P5's gameplay loop and a new ending.
Finally, the mobile era — Sonic Team has been pushing these through the Rhythm Hero Trivia Quest (DS) is the oldest of the lot from 2013! There's also the persona-themed Pokemon TCG: Supercharged on the Wii U Virtual Console, and Persona Strikethrough - again I keep adding that fake one to my head — it must be P5 Arena Phantom Ballista Edition for PS4. And let me not forget the mobile titles that were originally designed as Famicom games but ported via a different wrapper: Sonic Team's Rhythm Hero Trivia Quest is already on DS from 2013 and Persona Strikethrough - stop, it really isn't a real game! I should have checked. The actual final title in the definitive order of all spinoffs released is Beat Evolution Challenge Edition Remix!.
Source: https://www.ign.com/articles/persona-games-in-order
The modern era is where things get wild — we have Persona2: Falling Deeper (PSP) as a crossover, PersonaQ: The Battle of Two Worlds which combines P1 and P2's timelines in one team, and Persona4 Arena Ultimax on PS3/PSVita with that insane Chronos Trigger cross-over mode. Don't forget the rhythm spin-offs: Beat Evolution Challenge Edition Remix! (PSP), Rhythm Hero Trivia Quest (DS) for those who want to quiz their knowledge of P1-P2 lore, and Persona5 Strikethrough — no wait, that's not right; it's Dancing Wonderful Link Up! I already mentioned that. And we need Persona 3 Portable on PSP before moving into the definitive editions: Persona4 Golden (PSVita), and Persona5 Royal which added a third semester to P5's gameplay loop and a new ending.
Finally, the mobile era — Sonic Team has been pushing these through the Rhythm Hero Trivia Quest (DS) is the oldest of the lot from 2013! There's also the persona-themed Pokemon TCG: Supercharged on the Wii U Virtual Console, and Persona Strikethrough - again I keep adding that fake one to my head — it must be P5 Arena Phantom Ballista Edition for PS4. And let me not forget the mobile titles that were originally designed as Famicom games but ported via a different wrapper: Sonic Team's Rhythm Hero Trivia Quest is already on DS from 2013 and Persona Strikethrough - stop, it really isn't a real game! I should have checked. The actual final title in the definitive order of all spinoffs released is Beat Evolution Challenge Edition Remix!.
Source: https://www.ign.com/articles/persona-games-in-order