This game is great and incredibly addictive, capturing that classic feel of old-school flash games perfectly. For future development, I would recommend allowing players to clear out the central room of the house and move freely between rooms during gameplay . To increase complexity in the later waves, it would be great to see more enemy variety like flying creatures that can target the player directly . Adding high-cost, craftable consumables like grenades or Molotovs; they would be expensive and require re-crafting after every use, without making the game too easy. a Graphical upgrade for the landscape, terrain, and trees is needed .