Truth be told, Antichamber felt nearly finished the first time I ever laid hands on it. That was nearly a year ago. But creator Alexander Bruce insisted that – even after multiple years of near-obsessive fine-tuning – his non-Euclidean, Escher-ish, other impressive words that start with E puzzler needed more. So now here we are. But is it actually, truly finished? And was it worth the interminable, largely radio silent wait? Here’s wot I think.