Proteus
... that Proteus has been described as an anti-game, due to its lack of clear objectives?
... that <i id="mwBF4"><b id="mwBF8"><a href="./Proteus_(video_game)" id="mwBGA" rel="mw:WikiLink" title="Proteus (video game)">Proteus</a></b></i> has been described as an <a href="./Non-game" id="mwBGE" rel="mw:WikiLink" title="Non-game">anti-game</a>, due to its lack of clear objectives?