SparkEdit was a direct map editor for H1PC. It features a scenario editor/viewer where users can place and modify objects. In this way it is similar to Sapien.
Although you may see HMT referenced in older forum posts or guides, you should avoid using it these days. Using invader to extract tags and recompile them into maps is a more powerful and supported workflow.
Thanks to the following individuals for their research or contributions to this topic:
- GAIGHER (Screenshot of SparkEdit from their tutorial)