First off not a lawyer, so take it with a grain of salt.
Being indicted means you are formally charged with a crime. Its the process of the court saying we think you did this crime and we’re starting to head towards a trial.
Arrested means that police or other law officers are taking you into custody.
Arraigned means you are brought before a judge to answer the charges. When arraigned you choose whether to plea not guilty or not.
If you like tactics games I recommend Wintermoor Tactics Club. Its funny and sweet and fits nicely in that time frame