Please note some of these have been suggested before
here (but don't worry, by me xD)
Game 1:
Game/Idea: Booster game
Detailed description: You go up on a ramp that has a booster and get launched mid-air. The idea is to hit a moving object. If you manage to slash it, it does a visible effect to indicate that it has been slashed. Alternatively, a midair grenade game where you try to land a grenade in a hole while falling. If it's possible to have lava at the bottom, which turns to water if the "button" midair is slashed - to automate the game; would be good.
Unique details specification(such as special traps, hidden rooms, invisible walls): none, but i guess you could add invisible walls.
Sketch of the idea(ms paint or other)
Suggested theme/texture .. emm .. i don't have much care for this i'll leave to mappers to find a thematic correctness here.
Game 2:
Game/Idea: Fall through
Description, sketch and eventual details/possibilities are all in one image here.
Game 3:
Game/Idea: Strafe obstacle course/Deathrun
A strafe race, similar to that on sunny/jungle (hence no sketch) but with obstacles, such a hidden walls, lasers, places that would make you fall down - maybe even make it really complicated and have a "strafe deathrun"
Game 4:
Game/Idea: Ladder/Glass race
Detailed description: Emm, hard to explain but I'll try. The game idea itself is pretty obvious but should also be a bit challenging/complex. Having more than one route and trying to balance them to make more routes seem appealing (and also fit more players). However, the "quicker" ones should also be more challenging, like rewarding u for not spending too long or rewarding you for going to the tip of the ladder. There should be ladder blocks in the air, maybe a few obstacles along the way. Some places should require "ladder-strafing" trick to finish (holding forward + one of the side keys) and others should require you to turn around, and jump to another side and others should require you to use the momentum to land on the next one. Considering how ladders usually take you straight up, you should be able to create different shenanigans here.
Unique details specification(such as special traps, hidden rooms, invisible walls)
Sketch of the idea(ms paint or other)
Game 6:
Game 7:
Game/Idea: Spring game
Detailed description. Similar to how diving boards work, there should be a few "diving board tips" to propel you forward, until you reach the goal. This game should however only be played by a few players. And should have the platforms decently far away from each other to require you to keep the momentum.
Sketch of the idea(ms paint or other)

[/img]
Game 8:
Game/Idea: Strafe race with guns
Detailed description Like a strafe race in any other maps, but the Ts get guns, not to TK each other but to break objects as they strafe. Imagine adding that "thrill/adrenaline" as you're strafing. To make it more interesting the Ts should have limited ammo like 1 clip. Forced to drop their gun before the "gates" of the game are unlocked once finished. The objects should obviously block them if not shot, and maybe some just avoided with finesse. The amount of bullets should be challenging and appropriate to the amount of needed broken objects in the way.
Game 9:
Game/Idea Underwater obstacle course
Detailed description An obstacle course but under water, where you're forced against time and you also have to avoid things in the way, sweeping land mines, objects to break to get through and it should be tight with time (more like a duck n jump-level wipe) All of the ones I've listed so far don't need a detailed sketch but if you want I can try to draw something for this specific one as I realise what I've said now can be interpreted as too loose. Let me know.
Unique details specification(such as special traps, hidden rooms, invisible walls)
Sketch of the idea(ms paint or other)
Game 10:
Game/Idea: Giant grenade game
Game 11:
Game/Idea: A game room similar to he_glass
https://maps.cs-bg.info/maps/cs/330/#
Game/Idea: A game room similar to he_glass
- a lot of grenades and maybe a button on the wall to spawn more, the grenades break glass or kill players.
prolly gonna be difficult entity wise tho.