ProBuilder for Unity
ProBuilder for Unity is diabolically awesome. Grey-boxing goodness.
One of my laments of modern level-design is the environmental tools keep getting better, but gameplay-focused level-design tools have stagnated. ProBuilder revives BSP-style tools, without the actual constraints of BSP structure. So levels can be blocked-out quickly, directly within the editor.
It’s simple poly-editing really, but so creatively enabling. This tool makes Unity so damn appealing to me.
Edit: I just gave the demo version a try and it works exactly as shown in the videos (although the demo is limited of course). The full version could replace all of my grey-box workflow. You may have read my previous posts, stumbling about with SketchUp and Blender.