Roseliam

A guy obsessed with Rose, the breakout heroine of a hit web novel, decides his libido and a light-novel transfer device are reason enough to reincarnate into her world and get close to her. Whether the reincarnation actually goes his way is the joke the game opens with.

Once he's there, the isekai promise starts to slip: Rose has her own entanglements, and the world he drops into isn't the harem playground he pictured. The setup leans on the gap between what the protagonist expects from a genre he clearly grew up reading and what he actually gets.

Play moves around a sandbox fantasy town where you push the protagonist's pursuit of Rose forward while other relationships and rivals complicate things around him, with the usual mix of consensual and coerced encounters, voiced scenes, and the odd bit of internal-view detail the tags promise. It's a small-scale RPGM sandbox rather than a branching visual novel, so expect exploring and triggering scenes over any deep choice system.