Oh dear, the good old muscle & strength forum! Lemme check how are the things after 15-20 years!!
EDIT 
where is the forum? Its a different website now. 
Bare minimalistic workout doesn't even require a proper gym; something like below, one exercise each day, as many reps as possible till the body parts start trembling, with as many breaks/sets you want):
1) parallel bar dips (actually slight angle on bars is better on wrist and elbows and pectorals): targets pecs, anterior deltoids, triceps
2) pullups (with knees/feet not hanging down but in front making L shape): targets lats, biceps, rectus abs
3) dumbells held reverse lunges (much better than the usual lunges, details later): targets glutes, quads, obliques, slight hamstrings too
optional:
4) bent over Y raise or butterfly stroke (yes the swimming stroke with minimal weight like 1/2.5/5 kg): posterior deltoid, lateral deltoid, trapezius
5) weighted lateral flexion of neck (lying down on side): mastoid muscle, but well it affects all neck muscles. Mostly ignored by everyone at gym, but in my opinion well good to get the hulk look (thick neck) as well as stave off all posture caused neck pains
6) deadlift kind of movement with barbell/dumbell/kettleball: entire posterior chain, but will wreck recovering abilities, hence perhaps once a month?
