Oddworld Quintology

The Oddworld Quintology consists of the entire Oddworld series, which originally was supposed to include five Oddysees. As part of the original Quintology, only two "proper" chapters have been released: Abe's Oddysee and Munch's Oddysee; Abe's Exoddus and Stranger's Wrath are considered bonus games and do not count towards the Quintology, instead acting as companions to the series. After the reboot of the series in 2014, the previous timeline is no longer canon, as New 'n' Tasty took Abe's Oddysee's place. The rebooted Quintology is so far made up of New 'n' Tasty and Soulstorm.

Original Quintology
The original aborted Quintology was supposed to consist of five Oddysees. Below is a list of the known Oddysees.

Abe's Oddysee
The first game in the original Quintology. You play as Abe the Mudokon who helps to rescue his fellow friends from being turned into the latest manufactured product. He discovers the forgotten powers of the Mudokons and returns to free his fellow slaves from the flesh farm.

Munch's Oddysee
The second game in the original Quintology in which a Gabbit named Munch struggles to restore his near-extinct species with the help of Abe. The two must infiltrate corporate facilities with the help of Mudokons, Fuzzles and possessed Sligs alike to steal the fortune needed to win back the last can of Gabbit eggs.

Squeek's Oddysee
Squeek's Oddysee is believed to be the third part of the original Quintology, but has yet to be announced in any formal capacity. It was presumably cancelled when Oddworld Inhabitants development team closed down.

Rebooted Quintology
After the 2014 series reboot, New 'n' Tasty took Abe's Oddysee's place in the canon, therefore creating a new, rebooted Quintology.

New 'n' Tasty
Directly following Abe's Oddysee's story and set in the same locations with most of the same layouts, New 'n' Tasty follows Abe as he rescues his fellow Mudokons from being turned into a food product, discovers ancient powers in unfamiliar lands and destroys Rupture Farms.

Soulstorm
Soulstorm takes the place of Munch's Oddysee, following that game's themes of a Mudokon uprising and exploiting the Glukkon system to the Mudokon's benefit, but following a modified version of Abe's Exoddus' events. Abe leads the former Rupture Farms employees through industrial facilities, discovering the truth about the Mudokons' past and igniting a rebellion across Mudos, while working to free his people from the chemically induced chains that tie them all down.

Lorne Lanning On The Oddworld Quintology
"We said: “What if we could get back to what the original intent was with the Oddworld Quintology; really Abe’s primary story?” So Abe was this character who’s gonna drive [the story], he was the primary hero through the Quintology, but then we were like “oh, as we’re gonna add on his sidekicks, we’re going to feature them.” And that’s not necessarily the most wise thing to do.

We started this twenty-three years ago, we launched Abe twenty years ago. We’re gonna approach this in a more technologically agile way. We have some ideas; brew was at the core of it; brew was always supposed to be highly-flammable. I thought we could do it in 1998—thank god we didn’t try. I designed how it works back then, I just never had the chance to implement it. So it really felt like a highly volatile, flammable liquid.

So we said: “Okay, let’s start here, building on top of Unity, and we get to start where New ‘n’ Tasty left off, but we’re going to re-do a lot of the technology.” We didn’t have a whole staff who was trying to make art, or trying to do level designs ahead of where the code is. We said: “We really need to find the synergy of this and stay true to Abe, right?” Abe is really about followers, empathy, puzzles. So how do we do that but really turn the volume up to eleven on the genre? So I call it a platformer game and then push that dynamic too.

It’s a reset button on the story, but the story of Abe in Abe’s Oddysee and New ’n’ Tasty, that fable—it was really like a fable, a slave begins toppling a major system of oppression. We said: “Let’s keep the fable, but let’s get it running with 21st Century technology,” because that was on with where the [partner relationships were] for that point in time. Then we go forward and we go: “The rest was not.” So let’s use that opportunity to get back to what [the Quintology] was. And if we do it right, hopefully, the audience was with us."

Source: https://magogonthemarch.wordpress.com/2017/10/06/egx-2017-lorne-lanning-interview-with-caddicarus-transcript/