There are many alternatives to Bryce for Mac and since it's discontinued a lot of people are looking for a replacement. The best Mac alternative is Vue. It's not free, so if you're looking for a free alternative, you could try Terragen. If that doesn't suit you, our users have ranked more than 10 alternatives to Bryce and five of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Bryce are Natural Scene Designer (Paid), VizTerra (Paid) and FlowScape (Paid).
VizTerra is fast, powerful 3D Professional Hardscaping and Landscaping design software. VizTerra gives you the power to quickly and easily design incredibly detailed, fully-interactive 3D hardscapes, landscapes, and outdoor living spaces.
In FlowScape you can create your own tiny nature scene simply by painting. Choose from more than 20 landscapes and 60 models to create your own private paradise by changing the sky, rotating the sun, adding sound effects and adjust your camera.