A good way to make platform builders active is with achievements. Platform Builder is in steam considered as a game, like any other game, and probably it can have achievements for the program. Here is a list I think will be cool achievements:
Legend: Name // Description // How to do
- Let there be light // Create your new and flammable overworld // Create 1 overworld.
- Pathway Maker // Create a level for your game // Create a new area
- Lab Monkey // Test your level to see how it works // Press the test button 1 time
- Compulsive builder // Place over 1,000,000 objects in all-time // Place over 1,000,000 objects from the start to now.
- Otherworlds // Play an explore section's game // (Description)
- Build, Play and overall share // Share your game to explore section // (Description)
- Crash Tester // Die 1000 times in all-time // (Description)
- Postmortem // Health bar is 0 but you don't die // Use the command prompt of player's death to change your health to any other value than 0 and then use it.
- Sleep with fish // It's beautiful, see it, blueish as the sea... // Die by lack of oxygen in underwater.
- Stay tuned // Update another's game at explore section // (Description)
- Professional Questioner // Get all the possible assistant messages in all time // (Description)
- Programmer // Place over 1,000 command blocks // (Desc.)
- Teleporter // Use any website link on the main menu // (Desc.)
- Jukebox Keeper // Change your title music // (Desc.)
- For example... // Finish the Platform Builder example file // (Desc.)
- 1 is good, 2 are better // Play a co-op game // (Desc.)
- Brainbath // Stay 10 minutes READING at the EULA page // Stay 10 minutes at the EULA page, but you have to move/scroll at least each 1 minute.
- Architect // Place over 50,000 blocks // (Desc.)
- 24/7 // Keep the game opened during 24h // (Desc.)
These are ideas, you can suggest your ideas too and I will suggest some more. Now it's time to sleep. Bye!