Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Alien’s Mercy | 2021 | Ava York | Buy |
| 2 | Alien’s Challenge | 2021 | Ava York | Buy |
| 3 | Alien’s Stone Heart | 2021 | Ava York | Buy |
| 4 | Alien’s Treasure | 2021 | Ava York | Buy |
| 5 | Alien’s Jewel | 2021 | Ava York | Buy |
| 6 | Alien’s Wild Mate | 2021 | Ava York | Buy |
| 7 | Aliens’ Sacrifice | 2021 | Ava York | Buy |
| 8 | Alien’s Fate | 2022 | Ava York | Buy |
| 9 | Alien’s Fire | 2022 | Ava York | Buy |
| 10 | Alien’s Power | 2022 | Ava York | Buy |
| 11 | Aliens’ Princess | 2022 | Ava York | Buy |
| 12 | Alien’s Captive | 2022 | Ava York | Buy |
| 13 | Alien’s Temptation | 2022 | Ava York | Buy |
| 14 | Alien’s Gamble | 2022 | Ava York | Buy |
| 15 | Alien’s Claim | 2022 | Ava York | Buy |
| 16 | Alien’s Stake | 2022 | Ava York | Buy |
| 17 | Alien’s Heart | 2022 | Ava York | Buy |
| 18 | Alien’s Redemption | 2022 | Ava York | Buy |
| 19 | Alien’s Surrender | 2023 | Ava York | Buy |
| 20 | Alien’s Bounty | 2023 | Ava York | Buy |
| 21 | Alien’s Luck | 2024 | Ava York | Buy |
| 22 | Alien’s Crush | 2024 | Ava York | Buy |
| 23 | Alien’s Secret | 2024 | Ava York | Buy |
| 24 | Alien’s Match | 2024 | Ava York | Buy |
Outlaw Planet Mates is a 24-book alien romance series by Ava York that ran from 2021 to 2024. The series is set on a lawless frontier world where human women encounter alien males under dangerous circumstances. Each book carries an “Alien’s…” title reflecting the theme of that particular story, from Alien’s Mercy and Alien’s Challenge to Alien’s Redemption and Alien’s Match.
The long-running series gave York room to explore a wide range of romantic scenarios within a single setting. The outlaw planet premise keeps the stakes high across all 24 entries, with each book delivering a complete romance arc while contributing to the broader picture of life on this rough frontier.