Fortress TD2 Era Monsters is a free strategy game developed by otgs17 for Android devices. The game is set in a world where players must build a horde of monsters and take over shelters from humans. The game offers a unique twist as players can fling giant monsters into battle if the enemy proves too strong.

In addition, the game allows players to summon a countless zombie horde or wake up the speedy witch to have enemies torn to shreds in a blink. The game also offers the ability to turn weak monsters into enormous giants or imbue them with incredible strength and speed in the middle of a battle. Players can combine a host of abilities with monsters to take over the entire FortressTD universe.

Overall, Fortress TD2 Era Monsters is an engaging strategy game that offers a fresh take on the genre. The game's unique features and ability to control monsters set it apart from other strategy games on the market.