If your goal is to clear every achievement in Stone Simulator, thisStone Simulator Beginner Guide Wiki – 100% Achievement lays out the exact steps, the time commitment involved, and how to avoid the bugs that commonly ruin long runs.
The game is simple on the surface but requires long idle sessions and a few specific tricks to secure the hardest achievements. This walkthrough is structured to help you earn everything in the most time-efficient order.
Before You Start
Stone Simulator is currently unstable. The game suffers from memory leaks and does not auto-save, meaning crashes can wipe hours of progress. To avoid losing everything:
• Manually save often
• Avoid alt-tabbing for long periods
• Restart the game occasionally to clear memory
Your priority is to secure the longest-time achievements in a single uninterrupted save, so treat stability seriously from the start.
The Two Hardest Achievements
These are the milestones that define your full run. If you know what you’re preparing for, the rest becomes routine.
Survive 3 In-Game Years
Achievement: Future Relic
This is by far the longest part of the 100 percent journey. One in-game day lasts roughly:
• Event Mode: ~10 minutes
• Zen Mode: ~4 real-time hours
Because of reported variations, expect 6–8 hours of real-time idle if you choose Event Mode and conditions behave normally. Your timer must be on a single save file; quitting the save resets your progress towards this achievement.
Recommendations:
• Use Event Mode for this run
• Save every 1–2 in-game days
• Keep the game window in focus and avoid minimizing for long durations
You will passively unlock nearly all time, weather, and random event achievements during this run without effort.
Do Nothing for 15 Separate Days
Achievement: Existential Crisis
This achievement is slightly bugged. The counter tracks idle days, but it only increments if you intervene between each day.
Correct, safe method:
- Start a day and do nothing at all. Do not move the mouse or interact.
- Wait for the day to fully complete.
- Check that the counter increased by 1.
- Move the mouse briefly to reset the inactivity state.
- Repeat for the next day.
Important:
Two idle days in a row do not count as two. You must interact after each successful day to reset the condition.
Plan for ~3–5 hours to fully complete this achievement, depending on your day length setting.
Quick Achievements to Clear First
Get these out of the way before committing to your long idle run.
Starting Stone Shape Achievements
Each new run gives a random stone appearance. Restart the game until you spawn as:
• White Rock – White Prince
• Double-Head Sculpture – Double-Headed
These can be done before you begin your long survival save.
Photo Mode Achievements
Press P to enter photo mode. Take pictures:
• 1 photo
• 5 photos
• 10 photos
This only takes a couple of minutes.
Online Mode Achievements (You Can Play Solo)
Launch Online mode from the main menu. You do not need other players.
• Start a multiplayer lobby – Rock Together
• Press E ten times to relocate your stone ten times – Rolling Stone
Once done, you can switch back to your main save.
Achievements You Will Unlock Passively During the 3-Year Run
Do not chase these. They will unlock automatically while idling.
Random Event Achievements
Events trigger frequently. Merely witnessing them unlocks the achievements. You do not need to interact.
Examples include:
Yeti Approved, Night Lights, Portalized, Beam Me Never, Stone on the Move, and many more.
Expect to finish all of these within your first in-game year.
Weather Achievements
All seasonal and weather-triggered achievements unlock naturally over the years. No input required.
Time-Based Achievements
Milestones such as seasonal changes, first year completion, and long-duration achievements will unlock throughout the 3-year survival session.
Stone Simulator’s 100 percent completion is more patience than difficulty. The true challenge is avoiding game crashes and executing the 15-day idle achievement correctly. Almost everything else unlocks naturally while you wait.
Complete the quick tasks early, set up your long save safely, and treat the three-year survival as a background activity rather than an active play session. With this approach, the entire achievement list becomes straightforward.