When comparing Grey Goo vs XCOM 2, the Slant community recommends XCOM 2 for most people. In the question“What are the best singleplayer games on Steam?” XCOM 2 is ranked 25th while Grey Goo is ranked 171st. The most important reason people chose XCOM 2 is:
One of the main aspects of XCOM 2 is preparing your squad for each mission. You need to consider the terrain, objective, and enemy types. Based on these you'll select the appropriate soldiers, weapons, and gadgets. A lot of the missions have some leeway, so you'll be able to form a squad that fits your playstyle. It can either be a group of stealthy rangers, running in with machetes to surprise the enemy. Or it can be a group sharpshooters, allowing you to systematically clear the area from afar with sniper rifles. After each successful mission/kill your soldiers will earn experience. With enough experience you'll be able to promote them and earn learn new skills. You can also research new weapons and build them. A lot of it comes down to looting alien technology and reverse engineering it back at the base. All these things add up and it's really exciting watching your soldiers grow into unstoppable killing machines.
Specs
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Pros
Pro Balanced asymmetric races
Each of the three races have their own powers and weaknesses, which makes for asymmetric gameplay due in part to how each is balanced. Relying partially on a rock, paper, scissors approach, each faction has power over the others in some way, as well as exploitable weakness. Thus, when choosing a race, the player has to keep in mind what they need to do in order to defeat the other races, which results in different and unique play styles, increasing strategic longevity of the title.
Pro Accessible gameplay
Being that this is designed to be a traditional RTS game, fans of the genre should find the the gameplay familiar and easily accessible.
Pro Polished design
The graphics look great and look to be designed with care. There are plenty of tutorial pop-ups as well, which enhances the overall design and polish, as it alleviates any confusion players may have mid-match.
Pro Great map editor
Users can create their own maps with the custom map editor, which makes for a ton of longevity to the game as players can create their own maps to play on.
Pro Great soundtrack
The soundtrack features different music for each of the three available races. All of it is done well and feels as though it fits with each race making for a more immersive experience.
Pro Clever AI
The AI in Ashes of the Singularity is programmed quite well, allowing it to detect a player's weakness and using that to its advantage. Allowing the AI to have the same advantages that regular human opponents receive, in regards to Player Power Level and Mini-Map expansion detection, this keeps the player on their toes and makes for challenging single player action.
Pro Amazing building shortcuts
It's super easy to quickly select and build a specific unit and/or building, thanks to the excellent build menu.
Pro It's fun to manage your squad
One of the main aspects of XCOM 2 is preparing your squad for each mission. You need to consider the terrain, objective, and enemy types. Based on these you'll select the appropriate soldiers, weapons, and gadgets. A lot of the missions have some leeway, so you'll be able to form a squad that fits your playstyle. It can either be a group of stealthy rangers, running in with machetes to surprise the enemy. Or it can be a group sharpshooters, allowing you to systematically clear the area from afar with sniper rifles.
After each successful mission/kill your soldiers will earn experience. With enough experience you'll be able to promote them and earn learn new skills. You can also research new weapons and build them. A lot of it comes down to looting alien technology and reverse engineering it back at the base.
All these things add up and it's really exciting watching your soldiers grow into unstoppable killing machines.
Pro Makes you feel more for your characters than most character driven games
One of the more fun parts about this game is managing your squad. You can customize the looks, voices, and even names of your soldiers. As you take your soldiers on missions you'll get attached to them. This will create a lot of tense moments when your soldiers are about to die and you desperately try to save them.
If you decide to input the names of your friends or family, multiply the tension by ten.
Pro Excellent suspense
Throughout the campaign you'll always be running against the clock. You have a limited window of time to save humanity before the aliens take over completely. Successful missions only set them back slightly. Unsuccessful missions set you back significantly. It always feels like you're in an uphill struggle and failing means the end. It always feels like you're not gaining an advantage and the aliens have something else in store. This is reinforced in the missions. You never know what type of aliens there will be or what their reinforcements will bring. Encountering new species makes you fear for the well-being of your squad. It's rare for a game to keep you feeling like this.
Cons
Con Terrible UI
User interface is terrible: it's hard to select units and the cursor frequently gets stuck on other functions.
Con Can't change game speed
There's no way to slow down or speed up game speed.
Con Region locked
The matchmaking component of this title suffers from the region locking instituted upon it. Due to this constraint, finding players and getting into matches can be a issue, and take a great deal more time, as you will be unable to look for anyone outside of your respective region.
Con Lack of replays and spectator mode
There is no replay feature in the game, which means users will not be able to look back at previous matches, nor is there a spectator mode to allow others to view a match in progress.
Con Maximum of four players for multiplayer is limiting
The game's multiplayer greatness is stymied due to the limit on the maximum number of players being only four. With the only large-scale battles limited to 2v2 game types, players hoping to have more epic battles and play with more friends will unfortunately have to look elsewhere.
Con Demanding on hardware
Will not run on low-end graphics cards like the GeForce GT 740M or the HD Graphics 4600 / 5600.
Con Complaints about the new launcher
Sadly the Steam rating has dropped because of the new launcher, problems can be solved however: XCOM 2 How to Bypass the 2k Launcher without External Files or Configuration Guide.
Con Steep learning curve
XCOM 2 is not just about managing a squad of soldiers, you also have to manage your base and operations on a global scale. This includes managing your resources, identifying which missions you should prioritize, and allocating research for new technologies. It might take a while to learn everything needed to fully enjoy this game, especially on higher difficulties.