Games Like Onsen and Girls

Cards of Waifu: Collect & Duel is a card collection and battling game featuring anime-style art. Players collect cards by opening packs and build decks to duel against opponents. The game is characterized by its visual style and the collection aspect, though progression can be heavily influenced by monetization and card acquisition.

Gym Quest: Trainer Rise is an idle card game where players progress through simple, one-click actions. The game features a grindy progression system and a pay-to-win monetization model. Players can enjoy a fast-paced experience with smooth animations, but may encounter network issues and crashes.

Girl Musketeer is a portrait-oriented idle RPG where players collect resources and upgrade their characters over time. The game focuses on passive progression, allowing for short, infrequent play sessions. Its core gameplay is accessible offline, but monetization is a significant factor for faster advancement.

Ever Night: Reawakening is an anime-themed idle RPG where players collect characters and engage in automatic battles. The game features a "gacha" system for acquiring new characters and skins, with a focus on auto-play mechanics. While praised for its character designs and English voice acting, players report issues with pay-to-win elements and repetitive gameplay.

This is a portrait-oriented card game where players compete in rounds of Dou Dizhu. The core gameplay involves strategic card play to win hands and accumulate points. Reviews frequently criticize the game's monetization, suggesting that spending money provides a significant advantage in card distribution, leading to a pay-to-win experience.

Ragnarok: Rebirth is an idle role-playing game that automates much of the gameplay, including exploration and combat. Players engage with a system that limits daily experience gain and features a "player-driven economy" with limited price fluctuation. The game is characterized by its auto-play mechanics and energy timers, encouraging frequent but short play sessions.

破局：三國終章 is a card game set in the Three Kingdoms period. Players engage in strategic card battles, with a focus on collecting and building decks. The game features kingdom wars and a pay-to-win progression system, which is a significant point of contention for many players.

Castle Busters is an action game where players engage in castle-based combat. The core mechanic involves strategic targeting and destruction of opposing castles. Players praise the engaging combat and castle specialization, but frequently criticize the aggressive pay-to-win monetization and inconsistent ad rewards.

極速三國 一秒開戰 is a mobile strategy game focused on quick battles and character collection. Players engage in strategic gameplay with a focus on acquiring powerful heroes, though reviews indicate a strong pay-to-win element. The game is described as easy to play and fun, but suffers from a lack of English translation and a toxic, monetization-driven environment.

Grand Legend is an idle RPG where players collect and upgrade characters to battle. The game features a gacha system for acquiring new units, which some players find to be pay-to-win. While sessions are short and the game can be played with one hand, progression often requires significant grinding or spending.

Devikins is an idle RPG where players collect and evolve a roster of heroes. The game features strategic turn-based combat and a focus on character progression through various means. Its core loop involves managing resources and optimizing team compositions for continuous advancement.

Snacky Girls! is a portrait-oriented idle RPG where players collect and upgrade characters. Progression is driven by passive income and character growth, with a focus on collecting cute anime-style girls. The game is designed for short, interruptible sessions and features a significant reliance on ads or in-app purchases for advancement.

Beauty Mahjong: Chat& Love is a portrait-oriented Mahjong solitaire game featuring anime-style visuals. Players match tiles to clear the board in a relaxing, highly replayable experience. Progression is significantly tied to monetization, requiring in-app purchases or ad views to overcome obstacles.

Mobile Goddess: Epic 3D Battle is a portrait-oriented idle RPG where players collect and upgrade powerful goddesses to battle through various stages. The game features a progression loop that requires significant time investment or in-app purchases to advance, with a focus on collecting and enhancing characters. Its idle mechanics allow for short, interruptible play sessions, making it accessible for casual players.

Summoners Kingdom: Goddess is an idle RPG where players assemble and battle teams of heroes. The game features automated combat and a focus on collecting and upgrading powerful units. Its core loop involves frequent, short sessions for progression and engaging in online competitive play.

Anime TCG Merge Battle is a card battle game where players merge and upgrade cards to form stronger units. The core gameplay involves strategic card placement and merging to overcome opponents. Players praise the anime art style and the satisfying progression of upgrading their deck, though some report bugs and a grindy late-game experience.

Mobile Legends: Adventure is an idle RPG where players collect and upgrade heroes to battle through various stages. The game features a slow progression system with a strong emphasis on collecting resources and characters, often requiring significant time or in-app purchases to advance. Players praise the character designs but criticize the slow pace and pay-to-win elements.

Jujutsu: Malevolent Shrine is a gacha role-playing game based on the popular anime series. Players collect and upgrade characters to battle through various stages and challenges. The game features anime-style visuals and a progression system that can be heavily influenced by in-app purchases.

Idle Girl RPG is a portrait-oriented idle role-playing game where players progress through automated gameplay. The game features a low grind level and is designed for short, interruptible sessions. Monetization is primarily through ads, which can be a point of contention for some players.

Era of Sepia is an idle RPG focused on automatic battles and character progression. Players collect and level up heroes, engaging in a continuous cycle of growth and combat. The game emphasizes gacha mechanics and character collection, offering a low-interaction experience suitable for multitasking.

Trading Legend is an idle simulation game where players focus on "number go up" progression. The core gameplay involves managing resources and making choices to increase in-game metrics. While the art style is noted as a positive by some, the game is criticized for its aggressive pay-to-win monetization, requiring significant spending to progress or compete effectively.

Age of Origins is a city-building strategy game where players develop their base and engage in combat. The core gameplay involves upgrading structures, managing resources, and participating in events. Players praise the zombie-fighting aspect but criticize the game's heavy reliance on microtransactions and pay-to-win progression.

Three Kingdoms: Heroes Battles is an idle RPG where players collect and upgrade heroes from the Three Kingdoms era. The game features passive progression, allowing for short, interruptible play sessions. Its core appeal lies in strategic team building and the satisfaction of watching your heroes grow stronger over time.

Monster Legends is a card battle game with a Pokémon-inspired art style and engaging gameplay. Players collect and battle monsters using cards, with a focus on strategic deck building. However, the game is heavily criticized for its pay-to-win mechanics and misleading monetization practices, including persistent ads even after purchasing an ad-free option.