Here is the full list of all 39 NotGTAV achievements.
You splat the rat.
Play as Daffyd for the first time.
Hit the Shagging Campers from the top.
Crash into the lake when the body is floating.
Get sliced by the harvester.
Complete Wales.
Kill all the campers before picking up the soap.
Play as Darren for the first time.
Met Kenneth, the manager of Lidl, Swidon!
Listen to entire rap.
Destroy all the scenery in the Lidl Car Park.
Complete Swindon.
Learn the Lidl safe combination.
Play as David for the first time.
Die as David Cameron 5 times in the same game.
Dies as David Cameron another 5 times in the same game.
Crash into Big Ben while it is chiming.
Crash into the London Eye while it is spinning fast.
Cross the Thames 50 times without crashing.
Complete the Game.
Get caught with only one piece of evidence left to destroy.
In the London Heist crash into any four of the portaits on the walls.
Make 100 consecutive left turns in SuperSnake.
Complete the tour of the M4 corridor.
Listen to all the radio stations.
If... If we could somehow... harness this lightning... channel it... into the flux capacitor... it just might work
Visit the options screen.
Complete any level and its heist on Dark Souls mode.
Complete London without dying.
Destroy the first piece of evidence.
Destroy the second piece of evidence.
Destroy the third piece of evidence.
Destroy the fourth piece of evidence.
Destroy the fifth piece of evidence.
Destroy the sixth piece of evidence.
Destroy the... fourteenth piece of evidence?
Destroy the fourteenth piece of evidence.
Definitely destroy the fourteenth piece of evidence.
All this counting is boring.