can prisoners dig under perimeter walls?

[Toad]

I've had lots of trouble with tunnels is there a way to prevent tunnels?

[Proteus]

Prisoners can dig under everything ... but it takes a little bit longer for them to dig under perimeter walls, than under everything else

[Emmote]

All tiles have a set tunnelling speed, basically. Perimeter Walls are by far the slowest, but yes, they can.

[Toad]

do they need tools to dig tunnels?

[Proteus]

They are much faster with tools .... but they also can dig without them

[Toad]

lol i didn't know that

[Sperber]

Originally posted by Proteus:

They are much faster with tools .... but they also can dig without them

From what I heard in one of the alpha videos, this is only the case when they got out of the building. Don't remember when they said it - I am willing to look it up if necessary - but as far as I know, they need tools to get out of their cells.

[Proteus]

Originally posted by Sperber:

Originally posted by Proteus:

They are much faster with tools .... but they also can dig without them

From what I heard in one of the alpha videos, this is only the case when they got out of the building. Don't remember when they said it - I am willing to look it up if necessary - but as far as I know, they need tools to get out of their cells.

Well, I do specific searches in the night, when someone even after 2-3 hours of night sleep still has full sleep needs, resulting in catching many prisoners in flagranty, in the process of digging tunnels.
Less than half of those prisoners have tools with them (or in their cells) when caught.
(which for me is no surprise, considering the fact that I metal tools get caught from one of the 2-3 layers of metal detectors that the prisoners have to pass on their way between pubic areas (like visitation, workshops, canteen, deliveries) and their cells ... and makeshift pickaxes get caught by my daily convention of CIs to get informed of the "little seccrets" my prisoners try to hide in their cells)

(I guess I would have less than 1 tunnel per night on average, if prisoners needed tools to dig them ... and not 3-4 as it currently is the case)

[Mansen]

As mentioned in the latest? build video they can't go through proper walls without actual tools - Only dig through dirt. But they can get and make tools that don't appear on the detector.

[Sperber]

Originally posted by Proteus:

Originally posted by Sperber:

From what I heard in one of the alpha videos, this is only the case when they got out of the building. Don't remember when they said it - I am willing to look it up if necessary - but as far as I know, they need tools to get out of their cells.

Well, I do specific searches in the night, when someone even after 2-3 hours of night sleep still has full sleep needs, resulting in catching many prisoners in flagranty, in the process of digging tunnels.
Less than half of those prisoners have tools with them (or in their cells) when caught.
(which for me is no surprise, considering the fact that I metal tools get caught from one of the 2-3 layers of metal detectors that the prisoners have to pass on their way between pubic areas (like visitation, workshops, canteen, deliveries) and their cells ... and makeshift pickaxes get caught by my daily convention of CIs to get informed of the "little seccrets" my prisoners try to hide in their cells)

(I guess I would have less than 1 tunnel per night on average, if prisoners needed tools to dig them ... and not 3-4 as it currently is the case)

If it is the latest video (alpha 25) as Mansen said, I will look it up tomorrow. But in the meantime, let me specify my question: Do you find the tunnels before they even leave the building? If so, then that would not contradict what I am saying. You would just find them before they even need tools, because they didn't reach the wall of the building yet.

Another thing is, that not all prisoners need tools. neighbouring cells share them. That could explain why you only find tools with less than half of your wannabe escapees.

Not that I don't believe you. I am just sceptical since I'm clearly remembering Chris telling us otherwise. And since I run a pretty solid detection system (just like you), my experience with tunnels is almost nonexistent. I am just asking out of curiosity.

[Proteus]

Originally posted by Sperber:

Originally posted by Proteus:

Well, I do specific searches in the night, when someone even after 2-3 hours of night sleep still has full sleep needs, resulting in catching many prisoners in flagranty, in the process of digging tunnels.
Less than half of those prisoners have tools with them (or in their cells) when caught.
(which for me is no surprise, considering the fact that I metal tools get caught from one of the 2-3 layers of metal detectors that the prisoners have to pass on their way between pubic areas (like visitation, workshops, canteen, deliveries) and their cells ... and makeshift pickaxes get caught by my daily convention of CIs to get informed of the "little seccrets" my prisoners try to hide in their cells)

(I guess I would have less than 1 tunnel per night on average, if prisoners needed tools to dig them ... and not 3-4 as it currently is the case)

If it is the latest video (alpha 25) as Mansen said, I will look it up tomorrow. But in the meantime, let me specify my question: Do you find the tunnels before they even leave the building? If so, then that would not contradict what I am saying. You would just find them before they even need tools, because they didn't reach the wall of the building yet.

...

That may explain it then ...
90% of the times the tunnels that I find stay within the confines of the cell (i.e. usually, 3 tiles, including the toilet and 2 tiles into one direction of the cell )

Will check further next time, if any of the tunnels dug by prisoners without tools leave the confines of their cells (the answer may well be "No")

[Pyr0]

Don't have a workshop, and set metal detectors everywhere at all choke points, sniffer dogs. This includes places your staff goes, such as the delivery/storage/kitchen. I find if you wait till about 3am, and slam the shakedown button, it still finds the tunnels. I also did a triple wall in to make it take them a VERY long time to tunnel out. (double perimter walls, followed by a concrete one that goes on the interior. Armed guards, free fire on, at all escape points, ie, deliverys, garbage, holding cell entrance. Use road gates to fence it in the prison road area too.

The one digging tool they can make that WILL NOT show up on metal detectors, is the pickaxe in the workshop. Use one of your 100% ci's, or do a shakedown, if you find a pickaxe, good chance you'll find tunnels nearby!

[Bryan=0101]

Escape Tunnels will always be dug from the toilet of a cell during sleep time. A prisoner will gather digging tools such as spoons, sometimes collaborating with other prisoners in nearby cells to increase their collective digging speed. Prisoners will avoid walls if they can, especially perimeter walls, as these take an immense amount of time to dig through. Once out of a building they no longer need a digging tool, and can dig with their bare hands, although it's marginally slower.

As of Alpha 34, multiple prisoners digging the same tunnel yields diminishing returns. 4 prisoners will dig twice as fast as 1, and to dig 3 times as fast, there needs to be 11 prisoners digging together.

[TimesNewRoman]

yes they can dig under peremeter walls but its much slower....thats why I got 5 peremeter walls

[Bryan=0101]

sounds like alot if u strip them of tools they can't get tho it, what i do is rip up the walls of an building destory the par t the part of foudation teh walls were on and replace with permter wall so now inmtes tunnel into teh large water pipes that i ahve dog partols over adn get dig up

[liamyangll]

Sure! Just turn on 'No Tunnels' in 'Lightening The Load' in 'Mutators'!