Strategy games reward planning, patience, and the ability to adapt when a plan falls apart. This collection covers the genre's full range: tower defense games where you place units and upgrade them to hold back wave after wave of enemies, turn-based tactics where every move matters, and resource management challenges where you balance limited supplies against growing threats. Many titles start simple and layer on new mechanics - unit types, terrain effects, upgrade trees - so you learn the system by playing rather than reading a manual. Winning usually comes down to reading the situation correctly: knowing when to defend, when to expand, and when to take a risk. Because there is no time pressure in most of these games, they suit players who prefer thinking over twitch reflexes, and they are easy to pause and return to later. All strategy games here are free and run directly in your browser on desktop, tablet, or phone, with controls tuned for both mouse and touch. Whether you have ten minutes or a whole evening, there is a campaign here worth outsmarting.