Humans shouting to make a loud buzzer/siren sound. This sound was used as the game over siren in older versions of the open source game trosnoth, and has been described by some as a "maniacal scream".
A glass bottle rolling on the floor of a parking lot. Loud noise from glass making contact with the ground as it rolls. Recorder with a zoom h6 and stereo microphone (rode ntg2). The sound was post-processed to decrease volume as it was too loud. Recorded this sound on a sunny afternoon at the open window institute.
Three regular beeps of a smoke alarm, followed by one final slowly dying beep. Warning, this is super loud and ear-piercing compared to other sounds, turn your volume waaay down before testing out this sound.
Pure recording of a loud clap of thunder and the subsequent rumble. The initial crack is so loud and close that the recording volume is very low and catches almost no background sounds.
I found a bunch of old broken tripods and random plastic pieces and slammed it on the floor as hard as i can, and then i added some distortion in audacity to give it that "punch" sound.