As you develop a game, keep in mind WHY you made some decisions earlier. You may need to re-factor them for the game NOW as sands shift.
— Grant Rodiek (@HerrohGrant)

Playing is Better than Winning: Identity Compartmentalization

jtreat:

Have you ever tried playing a two-player game against yourself? It’s normally pretty unsatisfying because you can’t surprise yourself. And if you’re testing an early prototype, it’s not as helpful as testing with another person because you won’t misinterpret this thing that seems flawless in…

Methods for self-testing your early prototypes