Here you can download Demo version. It has not launch limitation, only several UI restrictions.
Right Click on link and Save As.
RayFire 1.87 – 3ds Max 2025 – Demo
RayFire 1.87 – 3ds Max 2024 – Demo
RayFire 1.87 – 3ds Max 2023 – Demo
RayFire 1.87 – 3ds Max 2022 – Demo
RayFire 1.87 – 3ds Max 2021 – Demo
RayFire 1.87 – 3ds Max 2020 – Demo
RayFire 1.87 – 3ds Max 2019 – Demo
RayFire 1.87 – 3ds Max 2018 – Demo