Games like Boyfriend Dungeon
Games like Boyfriend Dungeon include Undertale, Hades, Monster Prom, LoveChoice, and Dispatch. We matched them by the tags players give Boyfriend Dungeon on Steam (Comedy, Story Rich, LGBTQ+, Dating Sim, and Cute): closest matches first, and among equally close ones the better-known games.

Undertale
Shared: Story Rich · RPG · Funny

Hades
Shared: Roguelite · Story Rich · Action Roguelike

Monster Prom
Shared: Comedy · Dating Sim · LGBTQ+

LoveChoice
Shared: Story Rich · Dating Sim · Cute

Dispatch
Shared: Story Rich · Comedy · Choices Matter

Hades II
Shared: Roguelite · RPG · Story Rich

DELTARUNE
Shared: Story Rich · RPG · Funny

Date Everything!
Shared: LGBTQ+ · Dating Sim · Comedy

Otaku's Adventure
Shared: Dating Sim · Funny · Story Rich

Dream Daddy: A Dad Dating Simulator
Shared: LGBTQ+ · Dating Sim · Romance

Kitty Powers' Matchmaker
Shared: Dating Sim · LGBTQ+ · Funny

South Park™: The Stick of Truth™
Shared: Comedy · RPG · Funny

Monster Prom 3: Monster Roadtrip
Shared: LGBTQ+ · Comedy · Dating Sim

West of Loathing
Shared: Comedy · RPG · Funny

Volcano Princess
Shared: Dating Sim · RPG · Story Rich

Baldur's Gate 3
Shared: Story Rich · RPG · Choices Matter

Monster Prom 4: Monster Con
Shared: Comedy · LGBTQ+ · Dating Sim

South Park™: The Fractured But Whole™
Shared: Comedy · RPG · Funny

Mass Effect™ Legendary Edition
Shared: Story Rich · RPG · Choices Matter

鬼谷八荒 Tale of Immortal
Shared: RPG · Dating Sim · Story Rich

If My Heart Had Wings
Shared: Dating Sim · Cute · Story Rich

Monster Prom 2: Monster Camp
Shared: LGBTQ+ · Comedy · Dating Sim

Tales from the Borderlands
Shared: Comedy · Story Rich · Funny

Sucker for Love: First Date
Shared: Story Rich · Comedy · Cute