Free Mature Games on Steam
Steam currently has 5,643 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 4/15/2025.
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 88,265 reviews on Steam. This breaks down to a total of 72,849 positive reviews and 15,416 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 |
| Developers | |
| Publishers | |
| Steam App Id | 2923300 |
2. Metro 2033 Redux
In 2013 the world was devastated by an apocalyptic event, annihilating almost all mankind and turning the Earth's surface into a poisonous wasteland. A handful of survivors took refuge in the depths of the Moscow underground, and human civilization entered a new Dark Age. The year is 2033.
Metro 2033 Redux has achieved a Player Score of 89, placing it in the #2 spot for the best free Mature games. Its score was calculated by analyzing a total of 93,415 reviews on Steam. This breaks down to a total of 84,653 positive reviews and 8,762 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.
| Steam Price | $2.99 |
| Release Date | 8/28/2014 |
| Developer | 4A Games |
| Publisher | Deep Silver |
| Steam App Id | 286690 |
3. 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 #3 spot for the best free Mature games. Its score was calculated by analyzing a total of 45,766 reviews on Steam. This breaks down to a total of 44,989 positive reviews and 777 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.
4. 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 #4 spot for the best free Mature games. Its score was calculated by analyzing a total of 9,813 reviews on Steam. This breaks down to a total of 5,448 positive reviews and 4,365 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 |
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 16,442 reviews on Steam. This breaks down to a total of 9,295 positive reviews and 7,147 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 | 2/29/2024 |
| Franchise | Neverland Entertainment |
| Developers | |
| Publisher | Neverland Entertainment |
| Steam App Id | 2622000 |
6. 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 87, placing it in the #6 spot for the best free Mature games. Its score was calculated by analyzing a total of 4,146 reviews on Steam. This breaks down to a total of 3,743 positive reviews and 403 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 |
7. 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 87, placing it in the #7 spot for the best free Mature games. Its score was calculated by analyzing a total of 9,591 reviews on Steam. This breaks down to a total of 8,547 positive reviews and 1,044 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.
8. Action Taimanin
An intense, gorgeous hack-and-slash action RPG from the Taimanin fame!
Action Taimanin has achieved a Player Score of 82, placing it in the #8 spot for the best free Mature games. Its score was calculated by analyzing a total of 18,491 reviews on Steam. This breaks down to a total of 15,390 positive reviews and 3,101 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 10/6/2020 |
| Developer | LiLith |
| Publisher | Infini-Brain inc. |
| Steam App Id | 1335200 |
9. Aeons Echo
Aeons Echo offers a captivating role-playing adventure where sexy goddesses meet lewd mythology in a cyber-futuristic world. On your mission to save Zeus, you'll encounter kinky girls, steamy scenes, dating sim elements, interactive features, and diverse gameplay modes.
Aeons Echo has achieved a Player Score of 72, placing it in the #9 spot for the best free Mature games. Its score was calculated by analyzing a total of 2,830 reviews on Steam. This breaks down to a total of 2,115 positive reviews and 715 negative reviews — making it "Mostly Positive" on Steam.
It can be played and ran on Windows systems. Valve has also verified it as playable on the Steam Deck and will run well.
| Release Date | 8/22/2024 |
| Developer | Aeons Studio |
| Publisher | Nutaku Publishing |
| Steam App Id | 2832330 |
10. Soul Dossier
Soul Dossier is a multiplayer game based on Oriental culture (5vS1). The game is based on a variety of traditional Oriental cultures, including five elements, eight diagrams and folklore.
Soul Dossier has achieved a Player Score of 81, placing it in the #10 spot for the best free Mature games. Its score was calculated by analyzing a total of 26,472 reviews on Steam. This breaks down to a total of 21,772 positive reviews and 4,700 negative reviews — making it "Very Positive" on Steam.
It can be played and ran on Windows systems. At the moment, it is not possible to play or run Soul Dossier on the Steam Deck.
| Release Date | 3/29/2021 |
| Developer | （Hong Kong）GKD |
| Publisher | （Hong Kong）GKD |
| Steam App Id | 1520470 |
More Free Mature Games
Explore even more rankings for the 100 best free Mature games available on Steam.
| Image | Name | Actions | ||||
|---|---|---|---|---|---|---|
| 90,808 | 4/23/2024 | 81 | Free | Steam Charts | |
| 48,062 | 8/28/2014 | 89 | $2.99 | Steam Charts | |
| 11,329 | 8/14/2023 | 96 | Free | Steam Charts | |
| 4,315 | 2/21/2024 | 55 | Free | Steam Charts | |
| 3,805 | 2/29/2024 | 56 | Free | Steam Charts | |
| 2,331 | 10/4/2024 | 87 | Free | Steam Charts | |
| 2,017 | 6/4/2022 | 87 | Free | Steam Charts | |
| 1,664 | 10/6/2020 | 82 | Free | Steam Charts | |
| 1,657 | 8/22/2024 | 72 | Free | Steam Charts | |
| 1,339 | 3/29/2021 | 81 | Free | Steam Charts | |
 | 1,337 | 6/20/2019 | 81 | Free | Steam Charts | |
 | 1,284 | 6/3/2019 | 66 | Free | Steam Charts | |
 | 1,267 | 11/7/2024 | 70 | Free | Steam Charts | |
 | 942 | 10/19/2016 | 87 | Free | Steam Charts | |
 | 772 | 5/19/2020 | 84 | Free | Steam Charts | |
 | 756 | 8/14/2020 | 83 | Free | Steam Charts | |
 | 706 | 7/20/2022 | 56 | Free | Steam Charts | |
 | 630 | 7/29/2022 | 63 | Free | Steam Charts | |
 | 614 | 7/17/2023 | 60 | Free | Steam Charts | |
 | 470 | 4/15/2025 | 34 | 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, April 15). Steam Store. Steam Store.
- Valve Corporation. (2025, April 15). Banana on Steam. Steam Store.
- Valve Corporation. (2025, April 15). Metro 2033 Redux on Steam. Steam Store.
- Valve Corporation. (2025, April 15). VPet-Simulator on Steam. Steam Store.
- Valve Corporation. (2025, April 16). Lust Goddess on Steam. Steam Store.
- Valve Corporation. (2025, April 11). Astral Party on Steam. Steam Store.
- Valve Corporation. (2025, April 9). Amarillo's Butt Slapper on Steam. Steam Store.
- Valve Corporation. (2025, April 4). Wallpaper Alive on Steam. Steam Store.
- Valve Corporation. (2025, April 16). Action Taimanin on Steam. Steam Store.
- Valve Corporation. (2025, April 11). Aeons Echo on Steam. Steam Store.
- Valve Corporation. (2025, April 12). Soul Dossier on Steam. Steam Store.