Robots.io is a top-down old-skool MechWarrior'esque 5v5 objective-based twin-stick shooter. And it's really fun. They use the word MOBA to describe it, but it's not. It's just five objective points, no creeps or anything, that award ticking points. 1000pts, your team wins. Games take about 3-5mins. No level-ups, no itemization other than weapon/accessory picks between deaths, no cash/farming. So no MOBA. But it's still good, stompy fun.
Just play it exactly like you would a twin-stick shooter, except it has a heap of auto-aim, so your second stick is more-so target selection, rather than precise aiming. Use the accessory buttons, but usually not the fire buttons, because the second stick fires both weapons nicely. Maybe there's some setups that you could "pre-prime" weapon reloads to get a constant stream of fire going, but I haven't fiddled with it too much yet.
Anyway, try it out. It has the standard mecha weapons, it has objective based play, and it has minefields. Seriously, you can lay mines that only your team can see. Between two green lasers and two miners as a basic loadout, it becomes a different game.
If you like mecha, if you like twin-stick shooters, if you like smashing people that haven't worked out the controls properly yet, or if you like being an arsehole like me that baits people into running their mech through a minefield, give it a go. It's very basic so far on where the game could go (it's very early in its release), I'm pretty sure there's AI bots in many matches (hopeless ones to fill spots on teams, not hacked ones), and it's a bit screwy on team-work (no guilds etc yet), but I've had more fun out of this as my mecha fix than I have from anything else in ages.
I'm "GFB-sambojin" on there if you happen to get blown up by a retreating laser mech. Or if they make an actual guild system one day (someone said, "want to be in my guild? Throw those letters at the start of your name". I figured, why not? I can always change it back)