In 5E, the rules seem pretty straightforward, but clear, regarding armor and the associated AC. However, it seems a little out of balance for characters who fall prone.

Does, or should, the AC for a character change if they are prone? For example, the Paladin in my group I am DM'ing was wearing plate armor and was knocked unconscious, falling prone. As far as I can tell, this means he still retains his 18 AC, regardless of the fact he is no longer moving.

Should the AC stay at 18 or get reduced? Am I missing where this might be covered?

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    \$\begingroup\$ Welcome! I guess you are talking about D&D? Please specify the game by adding the appropriate tag to your question. \$\endgroup\$
    – Szega
    Commented Sep 19, 2020 at 14:09
  • \$\begingroup\$ Did you read the section in the rules of what ever RPG game you are talking about? They may give some advance for the attacker, when the target is unconscious (for example D&D 5e does). \$\endgroup\$ Commented Sep 19, 2020 at 14:48
  • \$\begingroup\$ Your title asks about a change in AC for being prone, but your question asks about a change in AC for being prone and unconscious. \$\endgroup\$
    – Kirt
    Commented Sep 19, 2020 at 18:13


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