Quoted from gmkalos:Well that's what Joust is it's clearly for sitting down
have you played one? i have and it seems standup height to me.
there are a few Homebrew head to head projects going. the problem with head to heads at least is the BOM cost is high with needing double of everything. for example, ball troughs, sling mechs.. that's $200 in extra stuff over a traditional game right there.