>>11947143
>unknown SEA studio
Besides Chasm: The Rift re-release, General Arcade did:
>Duke Nukem: Megaton Edition.
>Shadow Warrior Classic Redux.
>Console ports of Ion Fury.
They're not unknown.
https://generalarcade.com/projects/

Aside from them, another very notable re-release developer was Nerve Software and not just re-release work:
>Co-developer of Return to Castle Wolfenstein and made Tides of War port.
>Developed DOOM 3: Resurrection of Evil and BFG Edition.
>Ported Wolf3D, DOOM and DOOM 2 for Xbox 360 (XLA) and PS3.
>Made Duke Nukem 3D: 20th Anniversary World Tour.
>Created prior DOOM & DOOM 2 re-release in Unity wrapper.
Nerve seemingly ceased to exist at some point after Unity re-release released. First Rogue Entertainment (many ex-Rogue devs went to Nerve after it closed), now Nerve Software.
>>11947262
>ported Duke Nukem Megaton Edition and Shadow Warrior Classic Redux back in the day.
Not ported. They were the ones who created these versions.