99 Nights in the Forest: Upgrade the Deer-Monster!

In 99 Nights in the Forest: Upgrade the Deer-Monster!, you meet a small but creepy deer Skinwalker that you need to turn into a real monster. He is still just a fawn, but there is huge power hidden inside him that is waiting to break out. Your job is to help him grow and become a walking nightmare. You go all the way from a tiny deer to a powerful monster. With each new level, your pet gets stronger, his abilities level up, and his appearance changes. It all depends on how you manage him. On top of leveling, you pick different skins to build a truly terrifying creature that stands out among other monsters in this Roblox horror clicker game.

How to play?

Start by clicking on the monster to build up energy. Spend that energy on stronger clicks, leveling up your deer, or unlocking new locations. Each upgrade makes your fawn more powerful, which helps you in battles. Use boosters that double your click effect or enable auto-click for 30 seconds when you need to speed up leveling or when a battle is especially important. Unlock new areas and new skins with the energy you have saved up. Each new location brings fresh challenges, and every new skin changes how terrifying your monster looks. When you feel your monster is ready, jump into battles. The winner is the one with the most strength, agility, and horror points.

Get ready to play now the online game 99 Nights in the Forest: Upgrade the Deer-Monster! for free and without registration.
4 1 1 1 1 1 (3 Votes)
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About this game:

  • Players have rated this game 4.00 out of 5, based on 3 votes.
  • Released in November 2025.
  • Ready to play on Web Browser (PC).
  • Age rating: 9+
  • Powered by HTML5 (Unity WebGL) — jump right in and start playing in your browser, no downloads needed.

Game features:

  • Progress a tiny deer Skinwalker into a powerful monster across 99 nights
  • Tap to generate energy and spend it on click upgrades, levels, and new locations
  • Unlock and equip skins to change your monster’s appearance and intimidation level
  • Use temporary boosters for double clicks or auto-click to gain an edge in battles

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