Picobble
Fill an empty crossword shape with your own words and score past par.
Every day: One numbered grid a day, the same for everyone, to fill with crossing words of your own choice, scored by letter values against bronze to diamond par marks, often with a twist such as a letter you must use four times. New puzzle: Midnight local time.
Picobble gives you an empty crossword-style shape each day and lets you choose the words. Every crossing must be a real word, letters carry Scrabble-like values, and your total is measured against par marks from bronze to diamond, with daily rules such as required or banned letters.
Games like Picobble

Crosswordle (crosswordle.org)
A 5x5 crossword with no clues, where every word is a small Wordle.

Puzzle Page
A daily page of crosswords, logic grids and word puzzles, like a newspaper puzzle section.

Puzzmo
A daily puzzle page with a crossword, word games, a chess puzzle and more, all in one place.

The Missing Letter
Solve the crossword, find the letter no answer starts with, and save it for the week's Mystery Word.

SPIEGEL Wabenrätsel
A German crossword where answers wind around hexagons.
Jumble Crossword (CNN)
The daily Jumble, scrambled words in a crossword grid.
The Times Codeword
Crack the number-for-letter code in The Times daily codeword.

23 Words
Unscramble 23 words in a row, with 30 seconds for each.