A game in which the player(s) take turns lobbing projectiles at opponents
An artillery game is a video game within the Strategy Game genre which tasks the player with aiming and shooting to destroy opponents in a combat simulation. Usually the playing field (or battlefield, if you will) is shown in a Side View, with two opposing factions concentrated on opposite sides. Each faction starts with one or more units, which may take the form of tanks, cannons, mortars, or other artillery pieces. The player determines the angle and velocity of each shot before firing. Wind speed, gravity, and other factors may affect shot trajectories. Hitting a unit causes damage or instantly destroys the unit, and when all but one faction’s forces are eliminated, that faction wins the battle. Other common features include randomly generated terrain and unit placement, as well as causing missed shots to blast holes wherever they land. These can lead to "tunneling" strategies where a player shoots through a tall barrier in order to aim directly at the opponent instead of attempting to lob shots over the obstruction. Some games display shot trails to aid in adjusting a unit's aim on later turns. Most examples of artillery games fall under Turn-Based Strategy, but there also exist several games played in real time instead. Turn-based games may also impose a time limit on each player’s turn.
Keep your heads up for Rolling Updates! Some of the examples already having works pages are currently listed under Turn-Based Tactics, but I think they should move from that index into this one instead of living in both. I'm satisfied with the current description and breadth of examples, but I'm open to more suggestions while looking for hats.