This page probably needs proper formatting and stuff. Can probably be copy/pasted to "Civilization V/glitches" and linked to from this page.

Glitches

Peacetime war declaration and Diplomacy camera control:

Open "do you wish to declare war" dialogue by moving unit into enemy territory. While the do you wish to declare war dialogue is up, press F4, click on the enemy and declare war on them, then control the game using hotkeys. I believe that basically everything that would normally prevent you from ending your turn is controllable via hotkeys except for choosing building production and unit promotions, and if save unit promotions is on I think (but have not really tested) that having unit promotions available will not prevent you from ending your turn, so all you have to do is set all cities to wealth or plan ahead.

If you then get a message for peace from that enemy, then instead of being in control of your mouse, you will be in control of the diplomacy camera. Additionally, if you make peace by going to them yourself, you can declare war on them without having to wait for 10 turns using the dialogue box you have kept open this whole time.

https://youtu.be/dcCPX0z8-tA

Useful hotkeys

741963 - move unit in directions

F - fortify/garrison/sleep unit

B - build city

F1 - F9 - various overviews

F10 - Simple Visuals

F11 - quicksave

Home/End - cycle cities

,/. - cycle units

Update gamestate plz

If you cannot do stuff due to lack of updates (when certain screens are open), open and close the civilopedia with F1 and try again.

Annexing pls do stuff

If you cannot do stuff while annexing/razing/puppeting city, view city. Furthermore view city military overview click on unit closes the view city while allowing you to continue doing stuff, making it easier to see what you are doing

No unhappiness penalty

So if you press the diplomacy screen an instant before pressing a number key to move a unit to capture a city, and trade the city without seeing the popup for annexation/puppeteering/razing for an instant, the popup will sort of be in limbo, and you will no longer gain unhappiness from capturing cities.

Unfortunately, this glitch does not persist through save/load

Unit stack with city

If there is a unit on top of one of your cities, and you have someone's borders, and you give them your city, then your unit will be on top of the enemy city.

Unit stack with unit

If there is a unit on top of an enemy city, and you order it to swap positions with one of your units, instead your units will stack.

Unit stack with enemy unit

If two units are stacked, and you gift one of them to an enemy, they remain stacked.