@Pixel--Dude and I grew up in the same town. We and a few other friends used to play the following games:
1. Manhunt
Participants were assigned to one of two opposing teams and one team given the role of "hunter" would have to find and capture the other team. We would either play this game in one of the rougher neighborhoods of our town or the old abandoned college. The hunted could hide anywhere within the designated area of play. That would include people's gardens and private property. Anywhere was fair game. This meant that the hunted would often have to flee not only from the game's hunters but also from residents pissed off that we were trespassing on their property. Once a hunter caught sight of a hunted, he and his buddies would chase him down and physically apprehend him. Then the apprehended party would join the side of the hunters until there was only one hunted left. That person would be the winner.
Manhunt was so epic because we played it with such a large group of dudes from our school. I used to love it for the exhilaration that it provided. 
2. School Invasion
At night, after the school day had officially ended, Pixel--Dude, myself and one other friend (a Chinese kid) used to sneak into the school premises Metal Gear Solid-style and set ourselves certain objectives such as "reach X location". We'd have to climb over walls and gates and such because all of the main entrances were locked at that time and then do stealth in order to reach our destination, avoiding night security watchmen, the caretaker, and the occasional teaching staff member who for whatever reason had stayed behind a little later than usual. Oftentimes we'd get discovered and have to bail as fast as we could. Security and the caretaker would chase us. We were legitimately scared. People were crazier in the early and mid 2000s. We could have got our asses kicked. School invasion was still fun as hell though. We used to play it in autumn and winter because the early darkening of the sky made for better stealth tactics.
3. Building Bases
This isn't really a game as such, but a few of us used to build our own bases in the woodlands on the outskirts of our hometown. In order to build our bases, we used to misappropriate wood from the fences of the local bypass, either using a bow saw to cut off the planks or just hitting them with a sledgehammer to knock them off the posts, usually at night so there were no witnesses. Then we would carry the loose planks to our bases and build our own cabins using nails that we'd purchased from the tool store. We had all kinds of tools - hammers, sledgehammers, saws, bow saws - and learned how to use them pretty well. Our cabins were quite impressive for a group of 14 year-olds. Some of them had multiple storeys and even lookout towers. Base building was something that we did in summer.
4. Wrestling
Pixel--Dude, myself and a friend of ours used to play wrestling in our friend's living room while his mother was out partying. The goal was to dominate your opponent and make him submit by any means necessary. I hadn't begun training in Jiujitsu back then but used to study submission grappling tapes that I found on the internet and then try to use the armlocks, leglocks and chokeholds that I saw on the tapes on our friend who fancied himself as a bit of a tough guy and always wanted to challenge me. Needless to say, I was the best wrestler and often successfully tapped him out with the techniques that I was learning from the tapes. Boys were still pretty masculine back then and often did things like wrestling and play-fighting with their buddies. It was a whole lot of fun!
Being a teenager in the 2000s was hella awesome. There was just something more real and primal about life back then.
we would lock them both in the garden shed and after an hour or so take them out a slice of bread each that we ran under the tap and screwed up lol. We had to stop playing this game because Lucas88's brother's friend was traumatised and was screaming to be let out hysterically. We let him out. Coincidentally now he's a prison guard, so I wonder if he feeds the prisoners soaking wet bread and sadistically enjoys their hysterical squealing like me and Lucas did when we were younger haha
