Seedfall: Defend the Last Tree is a free online 2D pixel strategy game where you protect a magical tree against endless waves of corrupted creatures unleashed by an ancient underground bacteria. Using coins collected during each run, you summon natural defenses and cast enchanted upgrades to hold the line in a forgotten forest slowly being consumed by corruption. The core loop is simple to pick up but demands smart resource management as enemy waves get relentlessly harder.

What makes Seedfall genuinely engaging is the tension between spending coins early on weaker defenses versus saving up for powerful enchanted upgrades that can turn the tide. The pixel art side-scrolling presentation keeps things clean and readable mid-chaos, so you always know what's hitting your tree. Each wave introduces new corrupted enemy types, forcing you to rethink your defense placement and upgrade priorities rather than just repeating the same strategy every run.

If you enjoy casual tower defense games, endless survival challenges, or pixel strategy titles, Seedfall fits right into that space. It works great as a quick browser session or a longer grind to push your high score further. Fans searching for free online pixel platform defense games, casual 2D survival strategy games, or browser-based nature defense games will find exactly what they're looking for here – no download, no cost, just jump in and start defending.