![KINGDOM HEARTS Collection [I–III] vs. INTEGRUM MASTERPIECE: What’s the Difference?](https://img.g2a.com/700x394/1x1x0/kingdom-hearts-collection-i-iii-vs-integrum-masterpiece-whats-the-difference/6ecca0c28131407ba3932eb7)
KINGDOM HEARTS Collection [I–III] and KINGDOM HEARTS INTEGRUM MASTERPIECE look like two different mega-collections, but the actual game lineup is essentially the same.
Both combine HD 1.5+2.5 ReMIX, HD 2.8 Final Chapter Prologue, and KINGDOM HEARTS III + Re Mind. What really changes is where you can buy them, the platform version you receive, physical availability, upgrade options and platform-exclusive bonuses.
That distinction becomes particularly important on October 8, 2026, when Collection [I–III] launches for Nintendo Switch 2, PlayStation 5 and Xbox Series X|S, alongside a Windows release through the Microsoft Store. Meanwhile, Steam players have effectively had the same bundle since 2024 under the INTEGRUM MASTERPIECE name.
Image credit: Square Enix / Disney
Quick answer: if you already own KINGDOM HEARTS INTEGRUM MASTERPIECE on Steam, Collection [I–III] does not give you an extra Kingdom Hearts game. If you are buying on PS5, Switch 2, Xbox Series X|S or through the Microsoft Store on Windows, Collection [I–III] is the new version of essentially the same package.
Table of Contents
- Collection [I–III] vs. INTEGRUM MASTERPIECE at a glance
- Do they contain the same games?
- Why does Collection [I–III] have a different name?
- Platform differences
- Physical vs. digital editions
- Platform-exclusive Keyblades
- Do existing owners need to buy the collection again?
- Which version should PC players buy?
- Does either collection contain the complete story?
- Which one should you buy?
- FAQ
KINGDOM HEARTS Collection [I–III] vs. INTEGRUM MASTERPIECE at a glance
So if your only question is which one has more Kingdom Hearts?, the answer is neither. The major content is the same.
Do Collection [I–III] and INTEGRUM MASTERPIECE contain the same games?
Yes. Both packages are built from the same three collections.
KINGDOM HEARTS -HD 1.5+2.5 ReMIX-
- KINGDOM HEARTS FINAL MIX
- KINGDOM HEARTS Re:Chain of Memories
- KINGDOM HEARTS 358/2 Days – HD cutscene compilation
- KINGDOM HEARTS II FINAL MIX
- KINGDOM HEARTS Birth by Sleep FINAL MIX
- KINGDOM HEARTS Re:coded – HD cutscene compilation
KINGDOM HEARTS HD 2.8 Final Chapter Prologue
- KINGDOM HEARTS Dream Drop Distance HD
- KINGDOM HEARTS χ Back Cover
- KINGDOM HEARTS 0.2 Birth by Sleep -A fragmentary passage-
KINGDOM HEARTS III + Re Mind
The final component contains KINGDOM HEARTS III and its Re Mind expansion, which extends the game’s ending and Sora’s attempt to rescue Kairi.
Bottom line: Collection [I–III] is not an expanded edition of INTEGRUM MASTERPIECE. Square Enix itself describes the Steam version of this collection as KINGDOM HEARTS INTEGRUM MASTERPIECE.
So why does Collection [I–III] have a different name?
Mostly because Square Enix is relaunching the package for a new group of platforms in 2026.
INTEGRUM MASTERPIECE became the all-in-one Kingdom Hearts bundle on Steam in June 2024. Collection [I–III] is the newer branding used around the October 2026 release for current-generation consoles and Microsoft’s Windows ecosystem.
The official Collection page even removes most of the ambiguity with a note explaining that the collection is currently sold as KINGDOM HEARTS INTEGRUM MASTERPIECE on Steam.
In other words, think of these as two names for the same core mega-bundle rather than a standard edition and an upgraded edition.
The real difference is platform availability
This is where the comparison becomes much more useful.
Steam: INTEGRUM MASTERPIECE
Steam keeps the INTEGRUM MASTERPIECE name. The bundle has been available there since June 2024 and combines all three major packages in a single purchase.
At the time of writing on October 5, Steam is also running a 70% promotion through October 8, the same day Collection [I–III] officially launches. That makes the existing Steam package especially relevant if PC is already your preferred platform.
Windows and Xbox: Collection [I–III]
The Microsoft version has one particularly useful advantage: Xbox Play Anywhere. The store listing supports both Xbox Series X|S and PC, so one digital purchase works across those two parts of the Xbox ecosystem.
It also supports Smart Delivery and is optimized for Xbox Series X|S. If you regularly move between an Xbox console and a Windows PC, this is the most meaningful practical difference between Collection [I–III] and the Steam bundle.
PlayStation 5
Collection [I–III] brings the package to PS5 as a current-generation release rather than relying only on the older PS4 versions through backward compatibility.
Nintendo Switch 2
The Switch 2 release may be the biggest upgrade of the bunch. The previous Nintendo versions were cloud releases. Collection [I–III] brings the saga to Switch 2 through native versions, removing the cloud-streaming requirement that made the original Switch releases considerably less attractive.
Collection [I–III] also has physical editions
Collectors have another straightforward reason to care about the new name.
Collection [I–III] receives physical releases on PlayStation 5 and Nintendo Switch 2. INTEGRUM MASTERPIECE on Steam is naturally digital-only.
That does not change the games themselves, but if having Kingdom Hearts on the shelf matters to you, Collection [I–III] is the version designed around that current-generation physical release.
The platform-exclusive Keyblades are different
There is one actual in-game bonus difference worth knowing about.
Purchasing Collection [I–III], or the corresponding KINGDOM HEARTS III + Re Mind release, grants a different bonus Keyblade depending on platform:
That is a nice collectible difference, but not a reason to rebuild your entire Kingdom Hearts library on another platform unless one particular Keyblade means a lot to you.
Do existing INTEGRUM MASTERPIECE owners need to buy Collection [I–III]?
Steam players: no, not for additional story content.
If INTEGRUM MASTERPIECE is already sitting in your Steam library, the new Collection [I–III] does not suddenly add another missing game. You already own the same three major components.
There is a different situation for people coming from previous console releases. Square Enix says owners of eligible digital versions of INTEGRUM MASTERPIECE on Nintendo Switch Cloud, PlayStation 4 or Xbox One can receive a 50% discount on the corresponding new digital Collection [I–III] release. Similar discounts apply to eligible owners of the individual collections.
Important: this is an upgrade incentive for eligible previous console versions. Square Enix does not present Collection [I–III] as a content upgrade that Steam INTEGRUM MASTERPIECE owners need to rebuy.
Which version should PC players buy?
PC is where the naming becomes unnecessarily confusing, because both routes now exist.
Choose INTEGRUM MASTERPIECE if you want Steam
This is the simplest answer for anyone whose library already lives on Steam. You get HD 1.5+2.5, HD 2.8 and KINGDOM HEARTS III + Re Mind together, along with Steam features such as achievements and Steam Cloud support where available.
Choose Collection [I–III] on Microsoft Store if you use Xbox and PC
Xbox Play Anywhere changes the calculation. The Microsoft Store version can be played on both PC and Xbox Series X|S through the same purchase, which is a genuinely useful advantage if you use both devices.
You can also build the same Steam collection piece by piece
If you already own one part of the saga, buying the missing collections individually can make more sense than purchasing everything again.
Catching up on the whole Kingdom Hearts saga?
G2A Plus Free lets you earn Plus Points on marketplace purchases, with every 100 Plus Points worth €1 toward future orders. Plus Premium can also provide up to 10% off eligible items, higher discount codes, gaming rewards and priority post-purchase assistance.
Does either collection contain the complete Kingdom Hearts story?
No, and this is another area where the different names can be misleading.
Collection [I–III] and INTEGRUM MASTERPIECE both take you through almost the entire Dark Seeker Saga, but neither package suddenly adds the major story chapters that sit outside the three collections.
You will still need to account for Union χ, Dark Road and Melody of Memory if you want the broader story leading toward KINGDOM HEARTS IV.
Also remember that 358/2 Days and Re:coded appear in HD 1.5+2.5 as cinematic story compilations rather than playable remasters of their original Nintendo DS versions.
If you are starting from scratch, our Kingdom Hearts games in order guide explains exactly when to play or watch every chapter. For the actual lore, use Kingdom Hearts Story – Everything You Need to Know.
Collection [I–III] or INTEGRUM MASTERPIECE: which one should you buy?
The key point is simple: do not choose based on the title. Collection [I–III] is not the “complete newer edition” while INTEGRUM MASTERPIECE is the older incomplete one. In terms of the games you receive, they are effectively counterparts.
Choose based on the platform you actually want to use, whether physical ownership matters, whether Xbox Play Anywhere is useful to you and whether you already own part of the saga.
KINGDOM HEARTS Collection [I–III] vs. INTEGRUM MASTERPIECE FAQ
Is KINGDOM HEARTS Collection [I–III] the same as INTEGRUM MASTERPIECE?
In terms of the three major included packages, yes. Both contain HD 1.5+2.5 ReMIX, HD 2.8 Final Chapter Prologue and KINGDOM HEARTS III + Re Mind. The biggest differences are platform, branding, physical availability and platform-specific benefits.
Does Collection [I–III] include more games than INTEGRUM MASTERPIECE?
No. The core game and story lineup is the same. Collection [I–III] does not add Union χ, Dark Road or Melody of Memory.
Should Steam owners buy Collection [I–III]?
Not if the goal is simply to get more Kingdom Hearts content. Steam already sells the equivalent bundle as INTEGRUM MASTERPIECE. Buying Collection [I–III] on another platform makes sense only if you specifically want that platform version or its benefits.
Which Kingdom Hearts collection is best for PC?
INTEGRUM MASTERPIECE is the straightforward Steam choice. Collection [I–III] through Microsoft’s ecosystem is more attractive if Xbox Play Anywhere matters because the same purchase supports PC and Xbox Series X|S.
Same saga, different door
Square Enix has somehow managed to create a very Kingdom Hearts problem: two elaborate names for what is basically the same giant collection.
Fortunately, the answer is much simpler than the franchise timeline. INTEGRUM MASTERPIECE remains the all-in-one Steam package. Collection [I–III] brings that same core lineup to new native console versions and the Microsoft PC ecosystem, with physical releases and different platform bonuses attached.
Whichever route you take, you are getting an enormous amount of Kingdom Hearts and nearly the entire Dark Seeker Saga in one place. And with KINGDOM HEARTS IV now scheduled for late 2027, there is probably no better time to finally figure out why everyone is Xehanort.
More Kingdom Hearts reading
- Kingdom Hearts Games in Order – The Best Story Order to Understand Everything
- Kingdom Hearts Story – Everything You Need to Know
- KINGDOM HEARTS IV Finally Got a New Trailer – Footage Analysis
- Kingdom Hearts IV Trailer Confirms Playable Mickey Mouse and New Coco Gameplay
- Nintendo Switch 2 Games Releasing in October 2026