Basketball GM

Basketball GM is a single-player basketball simulation game where you get to make the decisions to run your team. This game is completely free. Play as much as you want, at whatever pace you want. Sign free agents, make trades, draft prospects, manage your finances. If you manage a team in a big city, try to build a dynasty with multiple championships. If you manage a team in a small city, it might be enough of a challenge to not go bankrupt and get fired.

Screenshots from Chrome Web Store