Gamer Terminology sometimes referred to as “Leetspeak”.
Words ending in -ed
When forming a past participle ending in -ed, the Leet user may replace the -e with an apostrophe, as was common in poetry of previous centuries, (e.g. “pwned” becomes “pwn’d”). Sometimes, the apostrophe is removed as well (e.g. “pwned” becomes “pwnd”). The word ending may also be substituted by -t (e.g. pwned becomes pwnt).
OK. Clear as mud/