You can play Creativita with the arrow keys. If you play Creativita in survival mode, the Steves will attack you (the Steves will not stay Steve forever. To place blocks is to left click, to destroy blocks is to left click again. If you fall into the void, click the green flag. You can change slots with the 1 and 2 buttons to change blocks.
The game Creativita is a clone of the original game "A pengoo RPG!", "Old-School Minecraft, a clone of Minecraft called "VOIMA", and another clone of Minecraft, known as "World of Blocks. If you want some things in the game, let me know in the comments, I may be able to add them and I may not depending on what it is.