Squad Leader Scenarios (SL) is a tactical board wargame created by Avalon Hill (Hasbro Gaming) that focuses on infantry combat during the Second World War. Players use map boards and counters to control small units of soldiers, vehicles, and weapons. In the game, situations are presented to players in the form of scenarios, typically including a map, a set of forces, and a set of victory conditions. The original Squad Leader game comes with 12 scenarios, and additional scenarios, numbered in sequence, follow in the three sequel games. There are also many "official" Scenarios in The General or sold as special releases (the Rogue Scenarios). In total, 123 official scenarios were made for the Squad Leader series.

Scenario format

Each scenario in the original four-game releases was printed on an 8-1/2" × 11" cardstock with the scenario number, an illustrative graphic, and a historical overview of the aftermath of the event depicted. Rodger MacGowan did the artwork for the original SL, COI and COD Scenarios and Charles Kibler took over with GI: Anvil of Victory. The original core Scenarios from the 4 games are numbered as follows:

Rules sections

The four Squad Leader games use Programmed Instruction to teach the game system; each scenario included with the games lists the new rules introduced with that Scenario. Squad Leader scenarios come with specific victory conditions, which vary depending on the nature of the scenario. Some common victory conditions include:

Official Scenarios

Other official Scenarios (Avalon Hill)

Series 100

Avalon Hill released Series 100, ten new Scenarios for Cross of Iron, in 1979. The Scenarios were designed by Courtney Allen (SL playtester and designer of Storm Over Arnhem).

Series 200

Avalon Hill released Series 200 with 10 new Scenarios for Crescendo of Doom.

Rogue Series 200

The Rogue Scenarios Series 200, named because they used boards 9, 10 and 11 which were not "official" boards at the time, used rules from the Crescendo of Doom. Some of the Scenarios needed multiple copies of several boards.

Series 300

Avalon Hill released Series 300 with additional Scenarios for GI: Anvil of Victory.

The General Magazine

Over the years, Avalon Hill also released Scenarios in issues of their magazine The General.

ASL Annual

The final "official" Scenarios issued by Avalon Hill for the original Squad Leader game were in the first two issues of the ASL Annual. All official Squad Leader Scenarios printed by Avalon Hill have been reissued for Advanced Squad Leader and released in either The General, ASL Annuals, or scenario packs. The ASL Journal had released seven Scenarios for Squad Leader but Multi-Man Publishing has indicated no intention to support the original SL game system.

Non-official scenarios

The Wargamer also released Scenarios 81–90 and a pack with Scenarios 91–100 in 1982. These were designed by contributors.