Human Fall Flat

I would strongly recommend starting the checkpoint over after solving the clocktower puzzle if you don't get a checkpoint after the grate lift.

I reloaded the checkpoint after completing the puzzle, did the run quickly and it didn’t pop. I kept just manually falling down and doing it again without dying, and it finally worked. I think it resets the timer when you hit the bottom platform, regardless of reloading the checkpoint.

Confirmed. Unless completed on first try, you must complete objective first.

I figured out a way to always have the checkpoint on the Win10 version. Don't know if this works on Xbox version

Solution for Tick Tock In Human Fall Flat Legacy (Windows)

Me and the brothers from other mothers have just unlocked this without reloading checkpoints, without doing the puzzle and without jumping off to respawn. You just have to keep trying as it’s buggy and you have be very quick. As long as you keep going back to the bottom set of stairs, that counts as a reset. Keep trying!

I will add a note to this. After many many attempts of this not working due to the checkpoint issues, I tried another way and it worked first time.
What you need to do it go to the melting pot and set it on fire with the fire. Then go and get the extra coal from the mountain and place that in the fire. Then head to the clocktower as shown on the video. This gave me the checkpoint first try at the bottom. Worked around to the top and it popped for me once I got in the tower. Good Luck

In case this helps anyone, I got this achievement on Co-op. We used the heavy box that is nearby the grate you need to lift up using the rocks in the crate.

Take the heavy box down the whole with you and carefully lift the box up the first three flights of stairs and position it at the top of the third. You can jump onto this box and then onto the ledge which is just past the pendulum of the clock tower. This should allow you to reach the top easily within 40 seconds. Just go back down to the bottom of stairs and one of you start the run to the top. If you don’t make it, you can just run back to the bottom and start again, the timer seems to restart without loading from checkpoint.

Finally got this on Windows 10 (Legacy version).

I did something similar to what NATO1080 suggested and that was to avoid the tree. First attempt at doing so and getting to the top, the achievement unlocked.

To be clear: to get the checkpoint where you respawn at the base of the clocktower, solve the clock puzzle so that the bell drops its gold clapper which is needed anyway to unlock the gate to the rest of the level.
And definitely don't use the tree. Raise your right arm, jump, and swing the camera hard around the corner to grab the ledge. Then grab it with your left arm.
Timed achievements are a sign of creative bankruptcy. Starting with the Aztec DLC my opinion of the game began to plummet.

Very useful! Thanks

@Gilbert Prime Timed achievements are a sign of creative bankruptcy??? It's an achievement!! It's a perfect use of an achievement, to utilise your knowledge of the game and mechanics to find a way to make it in a certain time. And the ones in this game are extremely easy compared to other games.

@JayD101 Nope. Timed achievements in general and in this case in particular are used when the devs can't think of anything better to challenge the player. Eventually even No Brakes manned up and stopped using them as a crutch after Amped! in Thermal six title updates ago.

Well, I've had enough of this nonsense. Nearly an hour and a half, and I just can't make the time. Bye bye game.

Edit: As usual, I come here to vent or rant about an achievement, or a hard part in a game, then I complete it shortly after. Never fails

I don't know when the timer began. My checkpoint kept being before the rock puzzle, but I was finally able to make it after repeating that puzzle multiple times.

There really should be a confirmation for hitting restart level. Convenient not having it for reloading checkpoints but not fun at all for the whole level.

So I did have a problem where the game would not give me a checkpoint at the bottom of the clock tower (instead it gave me one where you have to use rocks to lift the grate right before). Through sheer ignorance I just kept trying anyway and still got the achievement. So it looks like regardless of where your checkpoint is, if you restart checkpoint and go back to the stairs it still restarts the timer.

I didn't get a checkpoint at the bottom of the tower either. The achievement popped after first falling down trying to jump from the (first) tree. I decided to go on a practice run before reloading checkpoint. I climbed again without reloading and it popped.

@BlackTibo His procedure for creating the checkpoint on the clock worked. it is necessary to place the coals in the cart and light the fire first before going to the clock. this achievement is buggy, I got it only after I met the clock challenge, I jumped down there and started again (without loading the checkpoint). when I loaded the checkpoint it didn't work.

In case it helps anyone here is how I got it to pop. I never got the checkpoint to save below the tower so was a real pain. I climbed the tower similar to the video. The only thing I did different is that instead of jumping onto the tree you can make that jump directly by leaping off the platform and turning the camera. It is possible to grab the next platform directly. That probably saved me 1 second. The other biggest difference is that when I reached the top of the tower instead of running around all 4 sides I walked on the tiny ledge the opposite way around the clock. My thinking was I needed to save some seconds for this run and it is much faster to go the opposite way. I never made it, but the achievement popped anyway. Probably the hit box for inside the clock extends slightly outside that one wall. Hope this helps someone. This is a hard achievement. Hardest so far.

Ugh, I hate the part where you jump into the tree. I also tried doing a 90 degree jump around the corner (to bypass the tree) but that only worked once.

I found that moving my camera down as I'm jumping for a platform caused me to grab the platform past the edge and climb a bit sooner, compared to just grabbing the edge and pulling myself up. Saved maybe 2 seconds total but that was all I needed to get the achievement.

Update: I just got a 49 second run and it unlocked. I did not make it to the room at the top when it unlocked, I simply made it to the top ledge and it unlocked. This achievement is very, very broken. I'll attach my 39 and 49 second runs when they are uploaded in case anyone can figure out why the 39 second one didn't work but the 49 second one did.

39 second run that didn't work: playing

49 second run that did: Noodles Jr playing Human Fall Flat

I forgot to trim the second one. So there's an extra 10 seconds at the beginning,

I agree. Very buggy achievement. My timed seemed between 40 and 50 seconds and unlocked on outside top of the clocktower after making the first left (front face clock side). I also had reloaded the checkpoint starting where the rocks are several times. Hope this helps.

I got mine after first falling down trying to jump from the (first) tree. I decided to go on a practice run before reloading checkpoint (my cp was at the rocks). I climbed again and it popped.