In addition to the similar games listed above, which have been linked to this game specifically in the database, you may find games with a similar theme to Mass Effect in the following lists:
All games offer you agency. You can win or lose. You can complete them or stop at any time. But there are some games that offer a story that genuinely branches. Where you end up will be different from other players. This not only makes your actions really matter but also gives you a reason to play them again.
Setting aside games that evolve through simulation, or games where once you die it's game over, these branching narrative games tell a story that ends in a certain way because of the choices you made.
How hard a game is considered to be depends on who is playing it. A three-year-old tackling Zelda will struggle. But equally a new-to-games-parents will find Mutant Mudds
quickly gets beyond them. The games in this list are known for being difficult. They wear the difficulty as a badge of honour. "None shall pass," except this with the will, time and belligerence to get good enough at this particular activity to beat the high bar the game sets.
This might be grappling with the flying mechanics in Rocket League
, getting endlessly lost trying to find the next guardian in Shadow of the Collosus
or coming up with the right tactic to get enough money for the ship you need in Elite
. Of course, some of these games can be made easier, but to play them at their best is to ramp up the difficulty to max (crushing on The Last Of Us
for example) and let them give you all they've got.