We like games, no? It's good to have a tonne to keep us conlangers busy
So here's another idea.
Person A posts a sentence (translated into English too) in
Language A.
Person B translates the same sentence in
Language B and adds another sentence of his/her choice in
Language B.
Person C takes that sentence and translates it into
Language C and so on. An example:
A: Ik wil dên sprôk lerenI want to learn the language.
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B: Adegu ušniya tasI want to learn the language.
B: Pašui vromviyon.I don't like mushrooms.
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C: Ja no láķe mašrúmiI don't like mushrooms.
etc etc..
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I will start.
Ana adega modiu kaeriyaom ovar, đo adegu mael yemođka ušnišayon.I should stop changing letters in my language, because I will never be able to learn it fluently.