These are the monsters and some of the transformation sequences from "Pandemonium Classic: Unity Edition" by TL.
Official description: Pandemonium Classic: Unity Edition is a 3d version of House of Pandemonium/the Classic mode in House of Pandemonium - Remastered; which are both fantasy themed arena survival tf games.
Basically you play in a transformation/corruption sandbox trying to survive long enough to escape. It's a fun game that I recommend playing. The sandbox is also heavily customizable so you can make your own fun. It has a lot of transformation sequences so I figured it belonged here.
Beta 7 is now out so I thought I should finally get around to updating the gallery. Game link: https://f95zone.to/threads/pandemonium-classic-unity-edition-beta-7-throwawaylady.47776/
Transformation List: From House of Pandemonium: Nymph, Slime, Harpy, Golem, Rilmani, Pixie (with Fairy), Darkslave (with playable dark cloud), Podling, Rusalka, Cow and Imp. From Chambers of Pandemonium: Maid, Bee (Worker and Queen), Vampire (Spawn and Lord), Cupid, Fallen Cupid, Dryad, Treemother, Hamatula and Doll (all types, plus you can begin play as Pygmalie). From the Handbook to Pandemonium: Arachne, Alraune, Cherub, Djinni, Draugr, Fallen Cherub, Fallen Seraph, Ghoul, Leshy, Marzanna, Mermaid, Merregon, Nixie, Rabbit Wife (plus you can begin play as a Rabbit Prince), Seraph, Succubus (and extra Inma), Undine, Werecat, Weremouse, Werewolf, Wraith, Yuan-ti (and Acolytes) From Runes of Pandemonium: Darkmatter Girl, Dreamer, Fallen Gravemarker (well, from Gravemarkers), Gravemarker, Latex Drone From Doll Mansion: Claygirl (all three colours) And many extras: Evil Double, (playboy style) Bunnygirl, Guard, Mummy, Doomgirl, Mothgirl, Lamia, Kitsune, Dark Elf Master + Serf, Scrambler, Wicked Witch, Cultist, Demon Lord (including true form), Cowgirl Rancher, Lithosite Host, Nopperabo, Nyx, Mad Scientist, Frankie, Zombie, Antgirl (handmaiden/soldier/queen), Fire Elemental, Goblin, Cheerleader, Sheepgirl, Hypnotist (and Assistant), Lotus Eater, Alien, Xell, Teacher (and Student), Mantis, Oni, Magical Girl (and True/Fallen variants), Imposter, Half-Clone, Progenitor, Pinky, Jelly, Dullahan, Pumpkinhead, Intemperus, Entoloma, Throne, Lily, Frog, Jiangshi, Mercuria, Statue, Clown, Masked, Skunk, Bimbo (including Ganguro and True varieties)
House of Pandemonium - Remastered decided to go in more of a story-based direction, while Unity Edition expanded on the survival arena aspect. https://tfgames.site/index.php?module=viewgame&id=1931
Yeah the original remastering of the concept is House of Pandemonium Remastered (https://tfgames.site/index.php?module=viewgame&id=843) Which updates the turn based survival arena, and then spent it's time making a really great RPG based on the monsters and general concept of "Game doesn't end if you get transformed" So far it's got two game sized chapters out and it's working on the next one. The art there is all drawn as opposed to this 3d custom girl madness. I really like it because the writing is super charming.
Pandemonium Classic: Unity Edition is a first person survival real time transformation arena which added a lot of forms to the unremastered House of pandemonium assets. It also keeps the "Game doesn't end if you get transformed" thing but adds ways to actually win the game. It's still an arcade sandbox through and through though. Did add ant-girls and mantises which I appreciate.