Free Mature Games on Steam
Steam currently has 6,164 Mature games available to download and play. Explore our list of the best free games ranked by popularity and ratings. Data for this list is calculated from reviews and player counts reported directly by Steam and will be updated in real-time. Free Mature game rankings were last updated on 7/23/2025.
Looking for more? Explore other lists such as:
- Best mature games on Steam
- Best mature Steam Deck games
- Best mature Steam games for Mac OS
- Best mature Linux games on Steam
- Free Steam games
- Most played Steam games
- Best rated Steam games
1. Banana
Banana is a clicker Game, in which you click a Banana! In Banana you click the Banana to gain even more Bananas! Every 3 hours, you get dropped a banana. Each banana is also made by the community in discord. Come hang out with us and let's grow into something awesome !
Banana holds the #1 spot for "best free Mature game on Steam" with a Player Score of 81. Its score was calculated by analyzing a total of 90,540 reviews on Steam. This breaks down to a total of 74,384 positive reviews and 16,156 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on both Windows and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 4/23/2024 |
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| Steam App Id | 2923300 |
2. VPet-Simulator
Feeling like the computer desktop is too dull? Need something cute to heal oneself? Come and try this new completely free and open source V-Pet simulator. A cute and adorable pet that supports various feeding interactions to accompany you in game learning is definitely your best choice!
VPet-Simulator has achieved a Player Score of 96, placing it in the #2 spot for the best free Mature games. Its score was calculated by analyzing a total of 46,974 reviews on Steam. This breaks down to a total of 46,175 positive reviews and 799 negative reviews — making it "Overwhelmingly Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run VPet-Simulator on the Steam Deck.
3. Lust Goddess
Lust Goddess is a hot and thrilling collectible card game, in which you will assemble your unique squad of sexy mercenary girls. Earn their love and trust, and they will show you their gratitude by bringing your wildest and lewdest fantasies to life!
Lust Goddess has achieved a Player Score of 55, placing it in the #3 spot for the best free Mature games. Its score was calculated by analyzing a total of 10,672 reviews on Steam. This breaks down to a total of 5,937 positive reviews and 4,735 negative reviews — making it "Mixed" on Steam.
It can be played and ran on both Windows and Mac systems. At the moment, it is possible to play Lust Goddess on the Steam Deck (though some functionality may be limited).
| Release Date | 2/21/2024 |
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| Steam App Id | 2808930 |
4. Desktop Mate
Customize your PC with officially licensed, super-cute characters using the next-generation desktop mascot platform, Desktop Mate. Characters roam freely on your desktop, sitting on windows and playfully interacting with your mouse. Liven up your desktop with some new friends!
Desktop Mate has achieved a Player Score of 62, placing it in the #4 spot for the best free Mature games. Its score was calculated by analyzing a total of 6,997 reviews on Steam. This breaks down to a total of 4,430 positive reviews and 2,567 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
| Release Date | 1/8/2025 |
| Developer | infiniteloop |
| Publisher | infiniteloop |
| Steam App Id | 3301060 |
5. Astral Party
Astral Party is a multiplayer party game populated by cute anime girls! Choose your favorite character, strategize skills & cards, and roll the dice to destroy friendships in this unique board game.
Astral Party has achieved a Player Score of 56, placing it in the #5 spot for the best free Mature games. Its score was calculated by analyzing a total of 17,548 reviews on Steam. This breaks down to a total of 9,856 positive reviews and 7,692 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Astral Party on the Steam Deck (though some functionality may be limited).
| Release Date | 2/28/2024 |
| Franchise | Neverland Entertainment |
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| Publisher | Neverland Entertainment |
| Steam App Id | 2622000 |
6. Wallpaper Alive
The free and open source animated wallpaper utility for Windows! Transform your desktop with animated gifs and videos.
Wallpaper Alive has achieved a Player Score of 86, placing it in the #6 spot for the best free Mature games. Its score was calculated by analyzing a total of 10,840 reviews on Steam. This breaks down to a total of 9,560 positive reviews and 1,280 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
7. Amarillo's Butt Slapper
Slap it. Turn it. Slap it again. This incredible simulation of the human butt will leave you dizzy with all that bounce. It's an autoclicker, but instead of click, it slap. Way better imo.
Amarillo's Butt Slapper has achieved a Player Score of 86, placing it in the #7 spot for the best free Mature games. Its score was calculated by analyzing a total of 4,773 reviews on Steam. This breaks down to a total of 4,262 positive reviews and 511 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Amarillo's Butt Slapper on the Steam Deck (though some functionality may be limited).
| Release Date | 10/4/2024 |
| Developer | AmarilloArts |
| Publisher | AmarilloArts |
| Steam App Id | 3231090 |
8. Dota Underlords
Hire a crew and destroy your rivals in this new strategy battler set in the world of Dota. Introducing Season One: Explore White Spire and earn rewards on the Battle Pass. Pick from several different game modes, play on your own or with friends, and take advantage of crossplay on PC and mobile.
Dota Underlords has achieved a Player Score of 81, placing it in the #8 spot for the best free Mature games. Its score was calculated by analyzing a total of 90,890 reviews on Steam. This breaks down to a total of 74,736 positive reviews and 16,154 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. Valve has also verified it as playable on the Steam Deck and will run well.
9. Book of Yog Idle RPG
The Book of Yog is a 3D idle RPG game presented with a Cel-Shading art style. You can rally heroes, develop the kingdom and explore the secrets of a lost world. Dozens of heroes, hundreds of skills, thousands of loot for you to combine freely. Come to embark on a journey to build the strongest team!
Book of Yog Idle RPG has achieved a Player Score of 63, placing it in the #9 spot for the best free Mature games. Its score was calculated by analyzing a total of 7,598 reviews on Steam. This breaks down to a total of 4,887 positive reviews and 2,711 negative reviews — making it "Mixed" on Steam.
It can be played and ran on Windows systems. At the moment, it is possible to play Book of Yog Idle RPG on the Steam Deck (though some functionality may be limited).
10. Crush Crush
Welcome to Crush Crush - the Idle Dating Sim! Meet, flirt, and fall in love with a motley cast of girls in this heartfelt and hilarious game.
Crush Crush has achieved a Player Score of 87, placing it in the #10 spot for the best free Mature games. Its score was calculated by analyzing a total of 27,304 reviews on Steam. This breaks down to a total of 24,322 positive reviews and 2,982 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows, Mac, and Linux systems. At the moment, it is possible to play Crush Crush on the Steam Deck (though some functionality may be limited).
| Release Date | 10/19/2016 |
| Franchise | Sad Panda Studios Games |
| Developer | Sad Panda Studios |
| Publisher | Sad Panda Studios |
| Steam App Id | 459820 |
More Free Mature Games
Explore even more rankings for the 100 best free Mature games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 72,041 | 4/23/2024 | 81 | Free | Steam Charts | |
| 8,867 | 8/14/2023 | 96 | Free | Steam Charts | |
| 2,197 | 2/21/2024 | 55 | Free | Steam Charts | |
| 1,844 | 1/8/2025 | 62 | Free | Steam Charts | |
| 1,651 | 2/28/2024 | 56 | Free | Steam Charts | |
| 1,425 | 6/4/2022 | 86 | Free | Steam Charts | |
| 1,115 | 10/4/2024 | 86 | Free | Steam Charts | |
| 995 | 6/20/2019 | 81 | Free | Steam Charts | |
| 929 | 4/25/2025 | 63 | Free | Steam Charts | |
| 845 | 10/19/2016 | 87 | Free | Steam Charts | |
 | 762 | 6/2/2019 | 66 | Free | Steam Charts | |
 | 715 | 11/7/2024 | 70 | Free | Steam Charts | |
 | 695 | 10/6/2020 | 81 | Free | Steam Charts | |
 | 687 | 8/22/2024 | 72 | Free | Steam Charts | |
 | 646 | 7/21/2022 | 56 | Free | Steam Charts | |
 | 605 | 3/29/2021 | 81 | Free | Steam Charts | |
 | 572 | 8/14/2020 | 78 | Free | Steam Charts | |
 | 403 | 4/9/2024 | 67 | Free | Steam Charts | |
 | 391 | 7/17/2023 | 60 | Free | Steam Charts | |
 | 383 | 5/19/2020 | 84 | Free | Steam Charts |
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Player counts and rankings are enriched, analyzed, and updated in real-time to ensure we surface the most up-to-date insights. Learn more about the Steambase approach to data collection and our review methodology.
- Valve Corporation. (2025, July 23). Steam Store. Steam Store.
- Valve Corporation. (2025, July 23). Banana on Steam. Steam Store.
- Valve Corporation. (2025, July 30). VPet-Simulator on Steam. Steam Store.
- Valve Corporation. (2025, July 31). Lust Goddess on Steam. Steam Store.
- Valve Corporation. (2025, July 31). Desktop Mate on Steam. Steam Store.
- Valve Corporation. (2025, July 31). Astral Party on Steam. Steam Store.
- Valve Corporation. (2025, July 24). Wallpaper Alive on Steam. Steam Store.
- Valve Corporation. (2025, July 26). Amarillo's Butt Slapper on Steam. Steam Store.
- Valve Corporation. (2025, June 19). Dota Underlords on Steam. Steam Store.
- Valve Corporation. (2025, July 31). Book of Yog Idle RPG on Steam. Steam Store.
- Valve Corporation. (2025, July 23). Crush Crush on Steam. Steam Store.