Games released in 1998

C&C: Brute Force is a mod for Yuri's Revenge that turns the game into a kind of Tower Defense: you start with minimal forces, defend against endless waves of Yuri's minions, find random supplies, and gradually strengthen your base to eventually reach the dictator himself.

Half‑Life: Decay: Solo Mission is a Half‑Life mod that ports all chapters of the PS2‑exclusive expansion Half‑Life: Decay into a fully playable single‑player campaign while preserving the original gameplay.

Deep Impact is an impressive but unfinished total conversion for Generals Zero Hour that moves the game's events to a futuristic 2055 after Earth's collision with an asteroid. The mod adds two factions and includes several simple maps.

Command & Conquer Unofficial Patch — an unofficial update for the original Command & Conquer game (1995). The patch aims to improve compatibility with modern systems, fix bugs, add support for multilingual versions and high resolutions, as well as provide tools for creating custom missions and modifications.

Median XL is the largest modification for Diablo II, enhancing the original gameplay with thousands of new items, unique skills for all classes, and advanced endgame content. It also features extensive engine improvements and deep character customization.

Cold War Crisis is a total conversion of Generals Zero Hour set in the 1980s, featuring realistic combat, vehicles, and aircraft of the era. The mod completely overhauls gameplay, makes infantry a key force, introduces a point capture system, and adds unique mechanics, creating an atmosphere of serious confrontation between the USA and USSR.

Mental Omega is arguably the best mod for Yuri's Revenge and one of the most ambitious fan projects overall. It not only completely reimagines the original game but also significantly expands it, transforming it into an almost full-fledged sequel with a new storyline, campaigns, factions, and a massive amount of content.