Mountain

For this achievement your mountain(s) need(s) to live for 1000 cumulative hours. Your mountain is allowed to die. The only way your hours will count is if you have an active window open, or alt+tab the game. Clicking the game away by clicking on task bar won't count the hours. Try to save and store your game files somewhere sometimes as the hours may randomly reset. They can be found in > AppData\LocalLow\David OReilly\Mountain

To check your hours this guide is very helpful > https://steamcommunity.com/sharedfiles/filedetails/?id=1701909333

Use this code: vmvmamamadadadgnanad

This will put a plus sign in your top right corner. If it's not already set to "Many", set it to this. Then just wait. I would recommend coming back to the game after a few hours and seeing how many bombs you have, then rinse and repeat until you get five. Or, you could watch a decent amount pile up and then reset the mountain with as,zb to farm the 25 deaths achievement.