Wordrun: Crypt of the Dead is a word game I built. You're trapped in a crypt. Monsters are closing in. Your only weapon is your vocabulary.
Spell words using the letter tiles to attack enemies and earn movement. The longer and rarer the word, the harder you hit. Clear each floor to descend deeper, and purchase upgrades to increase your strength.
Annoyingly, it seems quite difficult to get Google to approve HTML5 ads, so there are some "show ad for a reward" buttons. However, they just give you the reward.
Play it at wordrun.co.uk.