Old School RuneScape (OSRS) is a massively multiplayer online role-playing game (MMORPG) that has withstood the test of time, retaining its player base with engaging quests, puzzles, and challenges. One of the most rewarding aspects of OSRS is its extensive list of quests that span a wide range of difficulty levels. While many quests are relatively easy to complete, some stand out as being particularly difficult due to their complex mechanics, lengthy requirements, and intricate storylines. These quests can challenge even the most experienced players, pushing their combat, problem-solving, and exploration skills to their limits.

In this article, we'll explore the top 10 most challenging original Old School RuneScape quests, taking into account factors such as combat difficulty, puzzle complexity, length of time, and overall player skill required. Without further ado, let's dive into the most grueling quests that OSRS has to offer!
Monkey Madness II

Quest Requirements: 175 Quest Points, Monkey Madness I, and several skill and combat requirements.

When it comes to challenging quests in OSRS, Monkey Madness II is at the top of the list. This long-awaited sequel to the original Monkey Madness quest was released in 2016 and instantly became one of the toughest quests in the game. It involves complex puzzles, tricky platforming sections, and high-level combat challenges.

To start Monkey Madness II, players must have completed Monkey Madness I and meet specific skill requirements, including 70 Agility, 70 Slayer, 75 Crafting, and 85 Combat. The quest also requires significant quest points, with players needing 175 to begin the journey. The quest leads players through the treacherous underground city of the monkeys, where they must navigate hazardous traps and defeat powerful bosses such as the fearsome Demonic Gorilla.

One of the hardest parts of Monkey Madness II is the final boss fight against the Demonic Gorillas, which require players to use different combat styles based on the gorilla's attack type. The entire experience is mentally taxing, requiring precise timing, proper gear, and a good understanding of mechanics. It's not only a test of combat prowess but also a real challenge in terms of resource management and preparation.