Drawing up the index page for Everybody Up 4 reminded me that I’ve published quite a lot of Simple Past recently, all suitable for both young learners and adults:
Guess the past time game (with lots of useful time expressions)
Simple Past True/ False bluffing card game (based on the card game Liar!)
Regular Simple Past pronunciation and storytelling
Irregular Simple Past pronunciation and storytelling
Also one older article and some more worksheets here:
TEFLtastic 