Do you mind telling me what game this is?

They don't do anything with the fish. If you catch a big enough fish they take a commemorative photo with the fishing center, which reflects if they're naked or not. If they're experienced enough this also leads to an orgy with everyone else there

Alter Egoism is really good though. Oneone1's best

Some games make it so you can unlock the "what if scenes" by winning, or put warnings on whether or not a fight has a "defeat scene" at all, which makes things more pointless even if you just treat it as a kink. Thankfully it's becoming more common to put porn along the way instead of after failing

Not rare at all, a lot of RPGs on dlsite are like this. Main one coming to mind is Doubles Core's games: Cuniculus of Paradise, Yes My Lord, From Frontier and Nursery Slime, which all have English Translations.

Meritocracy of the Oni and Blade
Ideaology In Friction
Samurai Vandalism
Obscurite Magie The Blood of Kings/City of Sin
Nightmare Knight
Paze Knight Ellen and the Dungeon Town Sodom
Shera and the Three Treasures
TAIMA MIKO
Tear And The Library of Labyrinths
Witch of Eclipse
End of Alter Egoism

Alchemy Fantasy R
Demon Lord Daughter and the Tower of Seals
Demon Queen Melissa
Demon Sword Incubus
Enishia and the Binding Brand
Fallen Saint Yhoundeh
Fox Girls Never Play Dirty
Holy Paladin Cynthia
Leviathan Survival RPG
Liz Tower and Grimoire
Longing Ring of Esca
Mai and the Legendary Treasure

Ambrosia
Magical Girl Celesphonia
Tialucy and the Underground Labyrinth
Virgin Protection Magic
Vera's Region Tour Diary
Saori's Ecchi Adventure
Ayame of the Night's Shadow
Knights of Messiah
Amelie falls over and over again
Brave Alchemist Colette
The Brave of Boner and the Demon of Malphas